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【C语言程序】控件字体使用系统默认字体，并去掉背景颜色 |
 一派護法 十九級 |
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一派護法 十九級 |
【main.c代码】
#include <tchar.h>
#include <time.h>
#include <Windows.h>
#include <windowsx.h>
#include <CommCtrl.h>
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' language='*' publicKeyToken='6595b64144ccf1df'\"")
HFONT hfontCustom, hfontCaption;
HINSTANCE hInst;
HWND hwndButton, hwndCheckbox, hwndCombo;
HWND hwndEdit, hwndEdit2, hwndProgress, hwndRadio;
HWND hwndTrackbar;
NONCLIENTMETRICS ncm;
// 创建自定义字体对象
void InitFont(void)
{
LOGFONT logfont;
ZeroMemory(&logfont, sizeof(logfont));
logfont.lfCharSet = GB2312_CHARSET; // 字符集
lstrcpy(logfont.lfFaceName, TEXT("楷体")); // 字体名称
logfont.lfHeight = 48; // 字体大小
logfont.lfQuality = ANTIALIASED_QUALITY; // 字体品质
logfont.lfWeight = FW_BOLD; // 是否为粗体
//logfont.lfItalic = TRUE; // 是否为斜体
hfontCustom = CreateFontIndirect(&logfont);
}
// 获取系统默认字体
void InitNCM(void)
{
ncm.cbSize = sizeof(NONCLIENTMETRICS) - sizeof(int); // 减掉int的大小是为了兼容XP系统
SystemParametersInfo(SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, (UINT)NULL);
hfontCaption = CreateFontIndirect(&ncm.lfCaptionFont);
}
void AutoSelectSeason(void)
{
time_t t = time(NULL);
struct tm lct;
int season;
localtime_s(&lct, &t);
if (lct.tm_mon < 2)
season = 3;
else
season = (lct.tm_mon - 2) / 3;
ComboBox_SetCurSel(hwndCombo, season);
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
LPWSTR lpwstr;
PAINTSTRUCT ps;
switch (uMsg)
{
case WM_COMMAND:
if ((HWND)lParam == hwndButton)
{
MessageBox(hWnd, TEXT("您点击了这个按钮！\n该按钮将被禁用"), TEXT("提示"), MB_ICONWARNING);
EnableWindow(hwndButton, FALSE);
SetWindowText(hwndEdit, TEXT("按钮已被禁用"));
}
break;
case WM_CTLCOLORSTATIC: // 消除Static控件和只读文本框的背景颜色
if ((HWND)lParam == hwndTrackbar)
return (LRESULT)GetStockObject(WHITE_BRUSH); // 滑块控件的背景颜色必须单独指定
case WM_CTLCOLORBTN: // 消除按钮背景颜色
break; // 直接返回FALSE, 不交给DefWindowProc处理
case WM_CREATE:
InitNCM();
InitFont();
// 可选中文字一般用无边框的文本框控件来做
hwndEdit = CreateWindow(WC_EDIT, TEXT("这是一段可用鼠标选中的文字..."), WS_CHILD | WS_VISIBLE | ES_READONLY, 10, 10, 300, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndEdit, WM_SETFONT, (WPARAM)hfontCaption, TRUE); // 该消息的LPARAM参数决定是否立即重绘控件
// 按钮控件
hwndButton = CreateWindow(WC_BUTTON, TEXT("确定"), WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON, 10, 32, 75, 23, hWnd, NULL, hInst, NULL);
SendMessage(hwndButton, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
// 注意: WS_BORDER是窗口的边框(默认为灰色), WS_EX_CLIENTEDGE才是文本框的边框
// 这个在Control Spy里面可以看到
hwndEdit2 = CreateWindowEx(WS_EX_CLIENTEDGE, WC_EDIT, TEXT("请输入一些内容..."), WS_CHILD | WS_VISIBLE, 10, 124, 300, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndEdit2, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
//下拉菜单框
hwndCombo = CreateWindow(WC_COMBOBOX, NULL, WS_CHILD | WS_VISIBLE | CBS_DROPDOWNLIST, 10, 160, 200, (int)NULL, hWnd, NULL, hInst, NULL);
SendMessage(hwndCombo, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
ComboBox_AddString(hwndCombo, TEXT("Spring"));
ComboBox_AddString(hwndCombo, TEXT("Summer"));
ComboBox_AddString(hwndCombo, TEXT("Autumn"));
ComboBox_AddString(hwndCombo, TEXT("Winter"));
AutoSelectSeason();
// 单选框
hwndRadio = CreateWindow(WC_BUTTON, TEXT("单选框"), WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON, 10, 196, 80, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndRadio, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
Button_SetCheck(hwndRadio, BST_CHECKED);
// 复选框
hwndCheckbox = CreateWindow(WC_BUTTON, TEXT("复选框"), WS_CHILD | WS_VISIBLE | BS_AUTO3STATE, 90, 196, 80, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndCheckbox, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
Button_SetCheck(hwndCheckbox, BST_INDETERMINATE);
// 进度条
hwndProgress = CreateWindow(PROGRESS_CLASS, NULL, WS_CHILD | WS_VISIBLE | PBS_MARQUEE, 10, 228, 400, 23, hWnd, NULL, hInst, NULL);
SendMessage(hwndProgress, PBM_SETMARQUEE, TRUE, (LPARAM)NULL);
// 滑块
hwndTrackbar = CreateWindow(TRACKBAR_CLASS, NULL, WS_CHILD | WS_VISIBLE | TBS_AUTOTICKS | TBS_ENABLESELRANGE, 10, 260, 400, 50, hWnd, NULL, hInst, NULL);
SendMessage(hwndTrackbar, TBM_SETRANGE, TRUE, MAKELONG(0, 10)); // 第三个参数决定是否重绘
SendMessage(hwndTrackbar, TBM_SETPAGESIZE, (WPARAM)NULL, 1);
SendMessage(hwndTrackbar, TBM_SETPOS, (WPARAM)TRUE, 6);
break;
case WM_DESTROY:
// 关闭窗口时删除字体
DeleteObject(hfontCustom);
DeleteObject(hfontCaption);
PostQuitMessage(0);
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
SelectObject(hdc, hfontCustom);
SetTextColor(hdc, RGB(122, 101, 197));
lpwstr = TEXT("这是一段不能选中的文字");
TextOut(hdc, 10, 64, lpwstr, lstrlen(lpwstr));
EndPaint(hWnd, &ps);
break;
default:
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
return FALSE;
}
int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
{
DWORD dwStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
HWND hWnd;
MSG msg;
RECT rect;
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.cbClsExtra = wcex.cbWndExtra = 0;
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hIcon = wcex.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wcex.hInstance = hInst = hInstance;
wcex.lpfnWndProc = WndProc;
wcex.lpszClassName = TEXT("MainWindow");
wcex.lpszMenuName = NULL;
wcex.style = (UINT)NULL;
RegisterClassEx(&wcex);
SetRect(&rect, 0, 0, 640, 480);
AdjustWindowRect(&rect, dwStyle, FALSE);
hWnd = CreateWindow(wcex.lpszClassName, TEXT("字体范例"), dwStyle, CW_USEDEFAULT, 0, rect.right - rect.left, rect.bottom - rect.top, NULL, NULL, hInstance, NULL);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
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一派護法 十九級 |
WM_CTLCOLORSTATIC消息返回FALSE可直接消除Static控件以及Read-only的Edit控件的背景颜色，但是会把滑块控件的背景颜色变为黑色，不过强行返回一个白色的画刷就能解决问题。
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一派護法 十九級 |
使用特定字体输出文本的方法：先填写一个LOGFONT结构体，然后调用CreateFontIndirect得到HFONT对象，将这个对象选入hdc即可。
使用系统默认字体的方法：用SystemParametersInfo函数填充NONCLIENTMETRICS结构体，调用前一定要设置该结构体的cbSize成员，为了兼容XP系统最好减去sizeof(int)（根据所用的SDK版本决定减不减）。然后，通过ncm.lfCaptionFont成员创建字体，将其选入hdc或者用WM_SETFONT消息设置控件的字体。
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一派護法 十九級 |
至于cbSize减不减sizeof(int)的问题，如果发现编译出来的程序在XP系统下运行时字体显示异常，就要减。如果减去后在Win7不能正常运行，那就不减。
一般VS2010以上都需要减。
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一派護法 十九級 |
 不过在XP下还是出错了。。。
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一派護法 十九級 |
其实，在XP中直接用(HFONT)GetStockObject(DEFAULT_GUI_FONT)就行了
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一派護法 十九級 |
其实，在XP中直接用(HFONT)GetStockObject(DEFAULT_GUI_FONT)就行了
但是MSDN里写着： Remarks
It is not recommended that you employ this method to obtain the current font used by dialogs and windows. Instead, use the SystemParametersInfo function with the SPI_GETNONCLIENTMETRICS parameter to retrieve the current font. SystemParametersInfo will take into account the current theme and provides font information for captions, menus, and message dialogs.
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一派護法 十九級 |
【修正后的代码（兼容XP系统）】
#include <tchar.h>
#include <time.h>
#include <Windows.h>
#include <windowsx.h>
#include <CommCtrl.h>
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' language='*' publicKeyToken='6595b64144ccf1df'\"")
HFONT hfontCustom, hfontCaption;
HINSTANCE hInst;
HWND hwndButton, hwndCheckbox, hwndCombo;
HWND hwndEdit, hwndEdit2, hwndProgress, hwndRadio;
HWND hwndTrackbar;
NONCLIENTMETRICS ncm;
int CALLBACK FontExistsProc(const LOGFONT *lpelfe, const TEXTMETRIC *lpntme, DWORD FontType, LPARAM lParam)
{
return 0; // 直接终止EnumFontFamiliesEx函数的运行
}
// 判断字体是否存在的函数
BOOL FontExists(LPLOGFONT lpFont)
{
HDC hdc = GetDC(NULL);
BOOL bResult = (EnumFontFamiliesEx(hdc, lpFont, FontExistsProc, (LPARAM)NULL, (DWORD)NULL) == 0);
ReleaseDC(NULL, hdc);
return bResult;
}
// 创建自定义字体对象
void InitFont(void)
{
LOGFONT logfont;
ZeroMemory(&logfont, sizeof(logfont));
logfont.lfCharSet = GB2312_CHARSET; // 字符集
lstrcpy(logfont.lfFaceName, TEXT("楷体")); // 字体名称
logfont.lfHeight = 48; // 字体大小
logfont.lfQuality = ANTIALIASED_QUALITY; // 字体品质
logfont.lfWeight = FW_BOLD; // 是否为粗体
//logfont.lfItalic = TRUE; // 是否为斜体
// 如果字体不存在, 就更换名称
if (!FontExists(&logfont))
lstrcpy(logfont.lfFaceName, TEXT("楷体_GB2312"));
hfontCustom = CreateFontIndirect(&logfont);
}
// 获取系统默认字体
void InitNCM(void)
{
ncm.cbSize = sizeof(NONCLIENTMETRICS) - sizeof(int);
SystemParametersInfo(SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, (UINT)NULL);
hfontCaption = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
}
void AutoSelectSeason(void)
{
time_t t = time(NULL);
struct tm lct;
int season;
localtime_s(&lct, &t);
if (lct.tm_mon < 2)
season = 3;
else
season = (lct.tm_mon - 2) / 3;
ComboBox_SetCurSel(hwndCombo, season);
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
LPWSTR lpwstr;
PAINTSTRUCT ps;
switch (uMsg)
{
case WM_COMMAND:
if ((HWND)lParam == hwndButton)
{
MessageBox(hWnd, TEXT("您点击了这个按钮！\n该按钮将被禁用"), TEXT("提示"), MB_ICONWARNING);
EnableWindow(hwndButton, FALSE);
SetWindowText(hwndEdit, TEXT("按钮已被禁用"));
}
break;
case WM_CTLCOLORSTATIC: // 消除Static控件、滑块控件和只读文本框的背景颜色
return (LRESULT)GetStockObject(WHITE_BRUSH);
case WM_CTLCOLORBTN: // 消除按钮背景颜色
break; // 直接返回FALSE, 不交给DefWindowProc处理
case WM_CREATE:
InitNCM();
InitFont();
// 可选中文字一般用无边框的文本框控件来做
hwndEdit = CreateWindow(WC_EDIT, TEXT("这是一段可用鼠标选中的文字..."), WS_CHILD | WS_VISIBLE | ES_READONLY, 10, 10, 300, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndEdit, WM_SETFONT, (WPARAM)hfontCaption, TRUE); // 该消息的LPARAM参数决定是否立即重绘控件
// 按钮控件
hwndButton = CreateWindow(WC_BUTTON, TEXT("确定"), WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON, 10, 32, 75, 23, hWnd, NULL, hInst, NULL);
SendMessage(hwndButton, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
// 注意: WS_BORDER是窗口的边框(默认为灰色), WS_EX_CLIENTEDGE才是文本框的边框
// 这个在Control Spy里面可以看到
hwndEdit2 = CreateWindowEx(WS_EX_CLIENTEDGE, WC_EDIT, TEXT("请输入一些内容..."), WS_CHILD | WS_VISIBLE, 10, 124, 300, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndEdit2, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
//下拉菜单框
hwndCombo = CreateWindow(WC_COMBOBOX, NULL, WS_CHILD | WS_VISIBLE | CBS_DROPDOWNLIST, 10, 160, 200, (int)NULL, hWnd, NULL, hInst, NULL);
SendMessage(hwndCombo, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
ComboBox_AddString(hwndCombo, TEXT("Spring"));
ComboBox_AddString(hwndCombo, TEXT("Summer"));
ComboBox_AddString(hwndCombo, TEXT("Autumn"));
ComboBox_AddString(hwndCombo, TEXT("Winter"));
AutoSelectSeason();
// 单选框
hwndRadio = CreateWindow(WC_BUTTON, TEXT("单选框"), WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON, 10, 196, 80, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndRadio, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
Button_SetCheck(hwndRadio, BST_CHECKED);
// 复选框
hwndCheckbox = CreateWindow(WC_BUTTON, TEXT("复选框"), WS_CHILD | WS_VISIBLE | BS_AUTO3STATE, 90, 196, 80, ncm.iCaptionHeight, hWnd, NULL, hInst, NULL);
SendMessage(hwndCheckbox, WM_SETFONT, (WPARAM)hfontCaption, TRUE);
Button_SetCheck(hwndCheckbox, BST_INDETERMINATE);
// 进度条
hwndProgress = CreateWindow(PROGRESS_CLASS, NULL, WS_CHILD | WS_VISIBLE | PBS_MARQUEE, 10, 228, 400, 23, hWnd, NULL, hInst, NULL);
SendMessage(hwndProgress, PBM_SETMARQUEE, TRUE, (LPARAM)NULL);
// 滑块
hwndTrackbar = CreateWindow(TRACKBAR_CLASS, NULL, WS_CHILD | WS_VISIBLE | TBS_AUTOTICKS | TBS_ENABLESELRANGE, 10, 260, 400, 50, hWnd, NULL, hInst, NULL);
SendMessage(hwndTrackbar, TBM_SETRANGE, TRUE, MAKELONG(0, 10)); // 第三个参数决定是否重绘
SendMessage(hwndTrackbar, TBM_SETPAGESIZE, (WPARAM)NULL, 1);
SendMessage(hwndTrackbar, TBM_SETPOS, (WPARAM)TRUE, 6);
break;
case WM_DESTROY:
// 关闭窗口时删除字体
DeleteObject(hfontCustom);
PostQuitMessage(0);
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
SelectObject(hdc, hfontCaption);
lpwstr = TEXT("这是TextOut函数输出的文字");
TextOut(hdc, 10, 320, lpwstr, lstrlen(lpwstr));
SelectObject(hdc, hfontCustom);
SetTextColor(hdc, RGB(122, 101, 197));
lpwstr = TEXT("这是一段不能选中的文字");
TextOut(hdc, 10, 64, lpwstr, lstrlen(lpwstr));
EndPaint(hWnd, &ps);
break;
default:
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
return FALSE;
}
int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
{
DWORD dwStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
HWND hWnd;
MSG msg;
RECT rect;
WNDCLASSEX wcex;
InitCommonControls(); // 这句话必不可少, 防止在XP系统下运行时无法显示控件
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.cbClsExtra = wcex.cbWndExtra = 0;
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hIcon = wcex.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wcex.hInstance = hInst = hInstance;
wcex.lpfnWndProc = WndProc;
wcex.lpszClassName = TEXT("MainWindow");
wcex.lpszMenuName = NULL;
wcex.style = (UINT)NULL;
RegisterClassEx(&wcex);
SetRect(&rect, 0, 0, 640, 480);
AdjustWindowRect(&rect, dwStyle, FALSE);
hWnd = CreateWindow(wcex.lpszClassName, TEXT("字体范例"), dwStyle, CW_USEDEFAULT, 0, rect.right - rect.left, rect.bottom - rect.top, NULL, NULL, hInstance, NULL);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
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