#include?“Bitmap.h“



FILE?*hFile?=?NULL;

int?LoadBitmapFile?（?char?*fileName?BITMAP_IMAGE_PTR?bitmap?）
{
	int?hImageFile?=?0;					//?the?file?stream?of?the?bitmap?file
	unsigned?char?*workingBuffer?=?0;	//?use?to?hold?the?data

	//?Open?the?bitmap?file
	hImageFile?=?_open?（?fileName?_O_RDONLY?）;

	if?（?!hImageFile?）
	{
		WriteLogFile?（?“LoadBitmapFile?function?error!?\nCan?not?open?the?bitmap.\n“?）;
		return?0;

	}//?End?If

	//?Read?the?header?portion?of?the?bitmap?file
	_read?（?hImageFile?&bitmap->bitmapHeader?sizeof?（?BITMAP_HEADER?）?）;

	//?test?if?it?is?a?bitmap
	if?（?bitmap->bitmapHeader.uiType?!=?UNIVERSAL_BITMAP_ID?）
	{
		WriteLogFile?（?“LoadBitmapFile?function?error!?\n\t?this?not?a?bitmap.\n%s\n“?fileName?）;
		_close?（?hImageFile?）;
		return?0;

	}//?End?If

	//?Read?the?info?portion?of?the?bitmap?file
	_read?（?hImageFile?&bitmap->bitmapInformation?sizeof?（?BITMAP_INFORMATION?）?）;

	//?load?the?data?itself?now?move?the?file?pointer?to?the?data?region
	//?move?back?from?the?end?of?the?file?offset?is?set?to?the?size?of?the?specified?image
	_lseek?（?hImageFile?-（int）（bitmap->bitmapInformation.biSizeImage）?SEEK_END?）;
	
	//?load?the?data?into?buffer
	workingBuffer?=?（unsigned?char*）malloc?（?bitmap->bitmapInformation.biSizeImage?）;
	bitmap->pixelData?=?（unsigned?char*）malloc?（?bitmap->bitmapInformation.biSizeImage?）;
	ZeroMemory?（?bitmap->pixelData?bitmap->bitmapInformation.biSizeImage?）;

	if?（?!workingBuffer?||?!bitmap->pixelData?）
	{
		WriteLogFile?（?“LoadBitmapFile?function?error!?\n\tCan?not?allocate?memory?for?the?buffer?\n“?）;
		_close?（?hImageFile?）;
		return?0;

	}//?End?If

	_read?（?hImageFile?workingBuffer?bitmap->bitmapInformation.biSizeImage?）;

	//?now?extract?the?data
	long?width??=?bitmap->bitmapInformation.biWidth;
	long?height?=?bitmap->bitmapInformation.biHeight;
	unsigned?long?int?dwBit?=?bitmap->bitmapInformation.biBitCount;
	long?bytesPerLine?=?（width*（bitmap->bitmapInformation.biBitCount/8）?+?3）?&?（~3）;

	//?Test?if?the?bitmap?is?avaiable?or?not
	if?（?dwBit?!=?24?&&?dwBit?!=?32?）
	{
		WriteLogFile?（?“LoadBitmapFile?function?error!?\n%s\tDo?not?support?this?kind?of?bitmap?\n“?fileName?）;
		_close?（?hImageFile?）;
		free?（?workingBuffer?）;
		free?（?bitmap->pixelData?）;
		return?0;

	}//?End?If

	//?Flip?the?image
	for?（?int?y?=?0;?y?	{
		memcpy?（?&bitmap->pixelData[y*bytesPerLine]?
			?????&workingBuffer[（height-1-y）*bytesPerLine]?
			?????bytesPerLine?）;

	}//?End?For?（?Each?line?）

	_close?（?hImageFile?）;
	free?（?workingBuffer?）;

	WriteLogFile?（?“%s?has?been?loaded?successfully!?\n“?fileName?）;

	return?1;
}



void?WriteLogFile?（?char?*content?...?）
{	
	char?buffer[1024]?=?{0};		//?the?working?buffer
	va_list?argumentList?=?NULL;	//variable?of?the?argument?list

	if?（?!hFile?||?!content?）
		return?;

	va_start?（?argumentList?content?）;
	vsprintf?（?buffer?content?argumentList?）;