win32_step_7 - 8BitsCoding/RobotMentor GitHub Wiki

• 소스코드
• 유투브
• WM_CREATE 사용법
• BitBlt 사용법

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LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	if (uMsg == WM_DESTROY) PostQuitMessage(0);
	else if (uMsg == WM_LBUTTONDOWN) {
		// HDC h_screen_dc = ::GetDC(NULL);
		HDC h_screen_dc = ::GetWindowDC(NULL);
		HDC h_dc = GetDC(hWnd);

		//BitBlt(h_dc, 0, 0, 300, 200, h_screen_dc, 0, 0, SRCCOPY);
        BitBlt(h_dc, 0, 0, 300, 200, h_screen_dc, 0, 0, SRCINVERT;  // 색상반전

		ReleaseDC(hWnd, h_dc);
		ReleaseDC(NULL, h_screen_dc);
	}

	return DefWindowProc(hWnd, uMsg, wParam, lParam);
}