程式語言 - MinGW - C/C++ - Painting - Create Font

參考資訊：
http://www.winprog.org/tutorial/
http://winapi.freetechsecrets.com/win32/
https://github.com/gammasoft71/Examples_Win32
http://masm32.com/board/index.php?topic=3584.0
https://learn.microsoft.com/en-us/windows/win32/winmsg/window-styles

在Windows視窗程式設計中，當需要文字輸出顯示在視窗上時，一般都會使用自定義的字型，因為系統預設的字型太小，而自定義的字型，除了可以是粗體或者斜體，還可以設定自定義的長寬尺寸，司徒使用一個簡單例子來說明如何建立自定義的字型

main.c

#include <stdbool.h>
#include <windows.h>
 
HWND hWin = NULL;
WNDPROC defWndProc = NULL;
 
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    HDC hdc = NULL;
    HFONT font = NULL;
    PAINTSTRUCT ps = {0};
    const char *pMsg = "Test";

    switch (uMsg) {
    case WM_CLOSE:
        DestroyWindow(hWnd);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);

        font = CreateFont(48, 0, 0, 0, FW_BOLD, false, false, false, 0,
            OUT_OUTLINE_PRECIS, CLIP_DEFAULT_PRECIS,
            CLEARTYPE_QUALITY, DEFAULT_PITCH | FF_DONTCARE, "Arial");

        SetTextColor(hdc, RGB(0xff, 0x00, 0x00));
        SetBkMode(hdc, TRANSPARENT);
        SelectObject(hdc, font);
        TextOut(hdc, 100, 100, pMsg, strlen(pMsg));
        EndPaint(hWnd, &ps);
        DeleteObject(font);
        break;
    }
    return CallWindowProc(defWndProc, hWnd, uMsg, wParam, lParam);
}
 
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    hWin = CreateWindow(WC_DIALOG, "main", 
        WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0, 300, 300, NULL, NULL, NULL, NULL);
    defWndProc = (WNDPROC)SetWindowLongPtr(hWin, GWLP_WNDPROC, (long int)WndProc);
 
    MSG msg = {0};
    while (GetMessage(&msg, NULL, 0, 0)) {
        DispatchMessage(&msg);
    }
    ExitProcess(0);
    return 0;
}

Line 24~26：創造一個大小48、粗體的Arial字型

編譯、執行

$ i686-w64-mingw32-gcc -mwindows main.c -o main.exe
$ wine ./main.exe