sysicon.c File Reference

#include <windows.h>
#include <stdio.h>

Include dependency graph for sysicon.c:

Go to the source code of this file.

Functions
LRESULT CALLBACK	WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
int APIENTRY	wWinMain (HINSTANCE hInst, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow)

Variables
WCHAR	WndClass [] = L"sysicon_class"
HICON	hIcon = NULL
HICON	hIconSm = NULL

Function Documentation

WndProc()

LRESULT CALLBACK WndProc	(	HWND	hWnd,
		UINT	msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 30 of file sysicon.c.

{
    switch (msg)
    {
        case WM_PAINT:
        {
            HDC hDc;
            PAINTSTRUCT Ps;
            RECT Rect;
            GetClientRect(hWnd, &Rect);
 
            Rect.left = 10;
            Rect.top = 10;
            Rect.right -= 10;
            Rect.bottom = 25;
 
            hDc = BeginPaint(hWnd, &Ps);
            SetBkMode(hDc, TRANSPARENT);
 
            DrawCaption(hWnd, hDc, &Rect, DC_GRADIENT | DC_ACTIVE | DC_TEXT | DC_ICON);
 
            EndPaint(hWnd, &Ps);
 
            return 0;
        }
 
        case WM_DESTROY:
            PostQuitMessage(0);
            return 0;
    }
 
    return DefWindowProcW(hWnd, msg, wParam, lParam);
}

Referenced by wWinMain().

wWinMain()

int APIENTRY wWinMain	(	HINSTANCE	hInstance,
		HINSTANCE	hPrevInstance,
		LPWSTR	lpCmdLine,
		int	nShowCmd
	)

This file has no copyright assigned and is placed in the Public Domain. This file is part of the w64 mingw-runtime package. No warranty is given; refer to the file DISCLAIMER.PD within this package.

Definition at line 67 of file sysicon.c.

{
    HWND hWnd1a, hWnd1b, hWnd2a, hWnd2b, hWnd3a, hWnd3b;
    MSG msg;
    WNDCLASSEXW wcx;
    UINT result;
 
    memset(&wcx, 0, sizeof(wcx));
    wcx.cbSize = sizeof(wcx);
    wcx.lpfnWndProc = (WNDPROC)WndProc;
    wcx.hInstance = hInst;
    wcx.hbrBackground = (HBRUSH)COLOR_WINDOW;
    wcx.lpszClassName = WndClass;
 
    if (!(result = RegisterClassExW(&wcx)))
        return 1;
 
    /* Load the user icons */
    hIcon   = (HICON)LoadImageW(hInst, MAKEINTRESOURCEW(100), IMAGE_ICON, 0, 0, LR_SHARED | LR_DEFAULTSIZE);
    hIconSm = (HICON)CopyImage(hIcon, IMAGE_ICON, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), LR_COPYFROMRESOURCE);
 
    /* WS_EX_DLGMODALFRAME */
    hWnd1a = CreateWindowExW(WS_EX_DLGMODALFRAME,
                             WndClass,
                             L"WS_SYSMENU | WS_EX_DLGMODALFRAME without user icon",
                             WS_CAPTION | WS_SYSMENU,
                             CW_USEDEFAULT, CW_USEDEFAULT,
                             400, 100,
                             NULL, 0,
                             hInst, NULL);
    if (!hWnd1a)
        return 1;
 
    ShowWindow(hWnd1a, SW_SHOW);
    UpdateWindow(hWnd1a);
 
    /* WS_EX_DLGMODALFRAME */
    hWnd1b = CreateWindowExW(WS_EX_DLGMODALFRAME,
                             WndClass,
                             L"WS_SYSMENU | WS_EX_DLGMODALFRAME with user icon",
                             WS_CAPTION | WS_SYSMENU,
                             CW_USEDEFAULT, CW_USEDEFAULT,
                             400, 100,
                             NULL, 0,
                             hInst, NULL);
 
    if (!hWnd1b)
        return 1;
 
    ShowWindow(hWnd1b, SW_SHOW);
    UpdateWindow(hWnd1b);
    SendMessageW(hWnd1b, WM_SETICON, ICON_SMALL, (LPARAM)hIconSm);
    SendMessageW(hWnd1b, WM_SETICON, ICON_BIG,   (LPARAM)hIcon);
 
    hWnd2a = CreateWindowExW(WS_EX_TOOLWINDOW,
                             WndClass,
                             L"WS_SYSMENU | WS_EX_TOOLWINDOW without user icon",
                             WS_CAPTION | WS_SYSMENU,
                             CW_USEDEFAULT, CW_USEDEFAULT,
                             400, 100,
                             NULL, 0,
                             hInst, NULL);
    if (!hWnd2a)
        return 1;
 
    ShowWindow(hWnd2a, SW_SHOW);
    UpdateWindow(hWnd2a);
 
    hWnd2b = CreateWindowExW(WS_EX_TOOLWINDOW,
                             WndClass,
                             L"WS_SYSMENU | WS_EX_TOOLWINDOW with user icon",
                             WS_CAPTION | WS_SYSMENU,
                             CW_USEDEFAULT, CW_USEDEFAULT,
                             400, 100,
                             NULL, 0,
                             hInst, NULL);
    if (!hWnd2b)
        return 1;
 
    ShowWindow(hWnd2b, SW_SHOW);
    UpdateWindow(hWnd2b);
    SendMessageW(hWnd2b, WM_SETICON, ICON_SMALL, (LPARAM)hIconSm);
    SendMessageW(hWnd2b, WM_SETICON, ICON_BIG,   (LPARAM)hIcon);
 
    hWnd3a = CreateWindowExW(0,
                             WndClass,
                             L"WS_SYSMENU without user icon",
                             WS_CAPTION | WS_SYSMENU,
                             CW_USEDEFAULT, CW_USEDEFAULT,
                             400, 100,
                             NULL, 0,
                             hInst, NULL);
    if (!hWnd3a)
        return 1;
 
    ShowWindow(hWnd3a, SW_SHOW);
    UpdateWindow(hWnd3a);
 
    hWnd3b = CreateWindowExW(0,
                             WndClass,
                             L"WS_SYSMENU with user icon",
                             WS_CAPTION | WS_SYSMENU,
                             CW_USEDEFAULT, CW_USEDEFAULT,
                             400, 100,
                             NULL, 0,
                             hInst, NULL);
    if (!hWnd3b)
        return 1;
 
    ShowWindow(hWnd3b, SW_SHOW);
    UpdateWindow(hWnd3b);
    SendMessageW(hWnd3b, WM_SETICON, ICON_SMALL, (LPARAM)hIconSm);
    SendMessageW(hWnd3b, WM_SETICON, ICON_BIG,   (LPARAM)hIcon);
 
    while(GetMessageW(&msg, NULL, 0, 0 ))
    {
        TranslateMessage(&msg);
        DispatchMessageW(&msg);
    }
 
    if (hIcon)   DestroyIcon(hIcon);
    if (hIconSm) DestroyIcon(hIconSm);
 
    UnregisterClassW(WndClass, hInst);
    return 0;
}

Variable Documentation

hIcon

HICON hIcon = NULL

Definition at line 28 of file sysicon.c.

Referenced by wWinMain().

hIconSm

HICON hIconSm = NULL

Definition at line 28 of file sysicon.c.

Referenced by wWinMain().

WndClass

WCHAR WndClass[] = L"sysicon_class"

Definition at line 27 of file sysicon.c.

Referenced by wWinMain().