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程式語言 - Wine - C/C++ - Load Icon

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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

main.c

#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <windows.h>
#include "resource.h"
 
static HWND hWin = NULL;
static HANDLE hIcon = NULL;
static WNDPROC defWndProc = NULL;
 
static LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg) {
    case WM_CLOSE:
        DestroyWindow(hWnd);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    case WM_PAINT:
        PAINTSTRUCT ps = { 0 };
        HDC hdc = BeginPaint(hWnd, &ps);
        DrawIcon(hdc, 100, 100, hIcon);
        EndPaint(hWnd, &ps);
        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, 320, 240, NULL, NULL, NULL, NULL);
    defWndProc = (WNDPROC)SetWindowLongPtr(hWin, GWLP_WNDPROC, (long int)WndProc);
    hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
    SetClassLong(hWin, GCLP_HICON, (LONG)hIcon);
 
    MSG msg = { 0 };
    while (GetMessage(&msg, NULL, 0, 0)) {
        DispatchMessage(&msg);
    }

    return 0;
}

main.rc

#include <windows.h>
#include "resource.h"

IDI_ICON ICON "main.ico"

resource.h

#define IDI_ICON 101

main.ico


編譯、執行

$ x86_64-w64-mingw32-windres main.rc -o main.res
$ winegcc main.c main.res -o main -lgdi32
$ wine main.exe.so