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typedef struct tagBITMAPINFOHEADER{ // bmih 
    DWORD  biSize; 
    LONG   biWidth; 
    LONG   biHeight; 
    WORD   biPlanes; 
    WORD   biBitCount;
    DWORD  biCompression; 
    DWORD  biSizeImage; 
    LONG   biXPelsPerMeter; 
    LONG   biYPelsPerMeter; 
    DWORD  biClrUsed; 
    DWORD  biClrImportant; 
} BITMAPINFOHEADER; 

#include <windows.h>

BITMAPFILEHEADER bmpFileHeader;
BITMAPINFOHEADER bmpInfoHeader;

LRESULT CALLBACK WndProc(HWND hWnd , UINT msg , WPARAM wp , LPARAM lp) {
	HDC hdc;
	PAINTSTRUCT ps;
	RECT rect;
	static TCHAR chStr[1024];

	switch (msg) {
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	case WM_CREATE:
		wsprintf(chStr , 
			TEXT("FILEHEADER\n")
			TEXT("bfType = %X\nbfSize = %d\nbfReserved1 = %d\n")
			TEXT("bfReserved2 = %d\nbfOffBits = %d\n\n")

			TEXT("INFOHEADER\n")
			TEXT("biSize = %d\nbiWidth = %d\nbiHeight = %d\n")
			TEXT("biPlanes = %d\nbiBitCount = %d\n")
			TEXT("biCompression = %d\nbiSizeImage = %d\n")
			TEXT("biXPelsPerMeter = %d\nbiYPelsPerMeter = %d\n")
			TEXT("biClrUsed = %d\nbiClrImportant = %d") ,

			bmpFileHeader.bfType , bmpFileHeader.bfSize ,
			bmpFileHeader.bfReserved1 , bmpFileHeader.bfReserved2 ,
			bmpFileHeader.bfOffBits ,

			bmpInfoHeader.biSize , bmpInfoHeader.biWidth ,
			bmpInfoHeader.biHeight , bmpInfoHeader.biPlanes ,
			bmpInfoHeader.biBitCount , bmpInfoHeader.biCompression ,
			bmpInfoHeader.biSizeImage ,
			bmpInfoHeader.biXPelsPerMeter ,
			bmpInfoHeader.biYPelsPerMeter ,
			bmpInfoHeader.biClrUsed , bmpInfoHeader.biClrImportant
		);
		return 0;
	case WM_PAINT:
		hdc = BeginPaint(hWnd , &ps);
		GetClientRect(hWnd , &rect);
		DrawText(hdc , chStr , -1 , &rect , DT_LEFT);
		EndPaint(hWnd , &ps);
		return 0;
	}
	return DefWindowProc(hWnd , msg , wp , lp);
}

int WINAPI WinMain(HINSTANCE hInstance , HINSTANCE hPrevInstance ,
			PSTR lpCmdLine , int nCmdShow) {
	HWND hWnd;
	MSG msg;
	WNDCLASS winc;
	HANDLE hFile;
	DWORD dwBytes;

	hFile = CreateFile(lpCmdLine , GENERIC_READ , 0 , NULL ,
		OPEN_EXISTING , FILE_ATTRIBUTE_NORMAL , NULL);
	if (hFile == INVALID_HANDLE_VALUE) return 1;

	ReadFile(hFile , &bmpFileHeader , sizeof (BITMAPFILEHEADER) , &dwBytes , NULL);
	if (bmpFileHeader.bfType != 0x4D42) {
		MessageBox(NULL , TEXT("This is not a bitmap file") , NULL , MB_OK);
		return 1;
	}

	ReadFile(hFile , &bmpInfoHeader , sizeof (BITMAPINFOHEADER) , &dwBytes , NULL);
	CloseHandle(hFile);

	winc.style 		= CS_HREDRAW | CS_VREDRAW;
	winc.lpfnWndProc		= WndProc;
	winc.cbClsExtra		= winc.cbWndExtra	= 0;
	winc.hInstance		= hInstance;
	winc.hIcon		= LoadIcon(NULL , IDI_APPLICATION);
	winc.hCursor		= LoadCursor(NULL , IDC_ARROW);
	winc.hbrBackground	= (HBRUSH)GetStockObject(WHITE_BRUSH);
	winc.lpszMenuName	= NULL;
	winc.lpszClassName	= TEXT("KITTY");

	if (!RegisterClass(&winc)) return 1;

	hWnd = CreateWindow(
			TEXT("KITTY") , TEXT("Kitty on your lap") ,
			WS_OVERLAPPEDWINDOW | WS_VISIBLE ,
			CW_USEDEFAULT , CW_USEDEFAULT ,
			CW_USEDEFAULT , CW_USEDEFAULT ,
			NULL , NULL , hInstance , NULL
	);

	if (hWnd == NULL) return 1;

	while (GetMessage(&msg , NULL , 0 , 0 )) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return msg.wParam;
}

typedef struct tagRGBQUAD { // rgbq 
    BYTE    rgbBlue; 
    BYTE    rgbGreen; 
    BYTE    rgbRed; 
    BYTE    rgbReserved; 
} RGBQUAD;

typedef struct tagBITMAPINFO { // bmi 
    BITMAPINFOHEADER bmiHeader; 
    RGBQUAD          bmiColors[1]; 
} BITMAPINFO;

typedef struct {
    DWORD        bV4Size;
    LONG         bV4Width;
    LONG         bV4Height;
    WORD         bV4Planes;
    WORD         bV4BitCount;
    DWORD        bV4V4Compression;
    DWORD        bV4SizeImage;
    LONG         bV4XPelsPerMeter;
    LONG         bV4YPelsPerMeter;
    DWORD        bV4ClrUsed;
    DWORD        bV4ClrImportant;
    DWORD        bV4RedMask;
    DWORD        bV4GreenMask;
    DWORD        bV4BlueMask;
    DWORD        bV4AlphaMask;
    DWORD        bV4CSType;
    CIEXYZTRIPLE bV4Endpoints;
    DWORD        bV4GammaRed;
    DWORD        bV4GammaGreen;
    DWORD        bV4GammaBlue;
} BITMAPV4HEADER, FAR *LPBITMAPV4HEADER, *PBITMAPV4HEADER;

typedef struct { 
    DWORD        bV5Size; 
    LONG         bV5Width; 
    LONG         bV5Height; 
    WORD         bV5Planes; 
    WORD         bV5BitCount; 
    DWORD        bV5Compression; 
    DWORD        bV5SizeImage; 
    LONG         bV5XPelsPerMeter; 
    LONG         bV5YPelsPerMeter; 
    DWORD        bV5ClrUsed; 
    DWORD        bV5ClrImportant; 
    DWORD        bV5RedMask; 
    DWORD        bV5GreenMask; 
    DWORD        bV5BlueMask; 
    DWORD        bV5AlphaMask; 
    DWORD        bV5CSType; 
    CIEXYZTRIPLE bV5Endpoints; 
    DWORD        bV5GammaRed; 
    DWORD        bV5GammaGreen; 
    DWORD        bV5GammaBlue; 
    DWORD        bV5Intent; 
    DWORD        bV5ProfileData; 
    DWORD        bV5ProfileSize; 
    DWORD        bV5Reserved; 
} BITMAPV5HEADER, FAR *LPBITMAPV5HEADER, *PBITMAPV5HEADER; 
#define BI_JPEG  4L

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