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

#define FILE_DEST_PATH "C:\\Users\\user\\Desktop\\STM32F4-DISCOVRY CODE\\EXAMPLECODE\\Application\\1_ScreenShot.bmp"
static char _acBuffer[0x1000];

/*********************************************************************
*
* _WriteByte2File
*
* Function description
* This function will be called by GUI_BMP_Serialize to write the
* bytes to the file
*/
static void _WriteByte2File(U8 Data, void * p) {
U32 nWritten;

WriteFile(*((HANDLE *)p), &Data, 1, &nWritten, NULL);
}

/*********************************************************************
*
* _ExportToFile
*
* Function description
* Demonstrates the use of GUI_BMP_Serialize
*/
void _ExportToFile(void) {
HANDLE hFile;

hFile = CreateFile(FILE_DEST_PATH, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
GUI_BMP_Serialize(_WriteByte2File, &hFile);
CloseHandle(hFile);

GUI_Delay(500);
}



static int _GetData(void * p, const U8 ** ppData, unsigned NumBytesReq, U32 Off) {
DWORD NumBytesRead;
HANDLE * phFile;

phFile = (HANDLE *)p;
//
// Check buffer size
//
if (NumBytesReq > sizeof(_acBuffer)) {
NumBytesReq = sizeof(_acBuffer);
}
//
// Set file pointer to the required position
//
SetFilePointer(*phFile, Off, 0, FILE_BEGIN);
//
// Read data into buffer
//
ReadFile(*phFile, _acBuffer, NumBytesReq, &NumBytesRead, NULL);
//
// Set data pointer to the beginning of the buffer
//
*ppData = _acBuffer;
//
// Return number of available bytes
//
return NumBytesRead;
}

/*******************************************************************
*
* _ShowBMP
*
* Function description
* Shows the contents of a bitmap file
*/
static void _ShowBMP(void) {
HANDLE hFile;

hFile = CreateFile(FILE_DEST_PATH, GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (!GUI_BMP_DrawEx(_GetData, &hFile, 0, 0)) {
GUI_Delay(2000);
}
CloseHandle(hFile);
}


/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* MainTask
*/
void ShowSnshotTask(void) {
//GUI_Init();


//while (1) {
_ShowBMP();

//}
}






Please let me know. I referenced 2DGL_DrawBMP but can not apply it to my code. The following code is the code that takes a screenshot and loads the file.

What should I do? Please tell me how.