C / C++ / MFC

koumodaki wrote:

I saw it and made the chages too. Still I am facting the same problem.

koumodaki wrote:

Am I missing something here?

Hanan888 wrote:

I tried to use it and got messed in the HDC stuff.

            CImage image
            PAINTSTRUCT ps;
    HDC hDC = BeginPaint (m_hWnd, &ps) ;
  (line 4)  //image = iter->second.m_pStaticData->m_Texture; -> this image was created previously but essentially by the same way like below
(line5) image.Load(L"./image.png");
    image.Draw(hDC,  (int) iter->second.m_pStaticData->m_UL.x, (int)
                        iter->second.m_pStaticData->m_UL.y);
    //image.BitBlt(hDC,0,0);
    EndPaint(m_hWnd, &ps);

CImage image;
   image.Load(L"./image.png");
   pStatData->m_Texture = image;

Hanan888 wrote:

L"./image.png"

LIBRARY	"CRCDLL"
EXPORTS ComputeCrc

void __stdcall ComputeCrc(int CRCType, BYTE *Data, int Length, BYTE *TransmitFirst, BYTE *TransmitSecond);

#include "stdafx.h"
#include "CRCDLL.h"

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
	case DLL_PROCESS_ATTACH:
	case DLL_THREAD_ATTACH:
	case DLL_THREAD_DETACH:
	case DLL_PROCESS_DETACH:
		break;
	}
    return TRUE;
}

#define CRC_A 1
#define CRC_B 2

//#define BYTE unsigned char

unsigned short UpdateCrc(unsigned char ch, unsigned short *lpwCrc)
{
	ch = (ch^(unsigned char)((*lpwCrc) & 0x00FF));
	ch = (ch^(ch<<4));
	*lpwCrc = (*lpwCrc >> 8)^((unsigned short)ch << 8)^((unsigned short)ch<<3)^((unsigned short)ch>>4);
	return(*lpwCrc);
}

void  __stdcall ComputeCrc(int CRCType, BYTE *Data, int Length, BYTE *TransmitFirst, BYTE *TransmitSecond)
{
	unsigned char chBlock;
	unsigned short wCrc;
	switch(CRCType) 
	{
	case CRC_A:
		wCrc = 0x6363;
		break;
	case CRC_B:
		wCrc = 0xFFFF; 
		break;
	default:
		return;
	}
	do 
	{
		chBlock = *Data++;
		UpdateCrc(chBlock, &wCrc);
	} while (--Length);

	if (CRCType == CRC_B)
		wCrc = ~wCrc;
	
	*TransmitFirst = (BYTE) (wCrc & 0xFF);
	*TransmitSecond = (BYTE) ((wCrc >> 8) & 0xFF);
	return;
}

Private Declare Sub ComputeCrc Lib "CRCDLL.dll" _
(ByVal CRCType As Long, Data As Byte, ByVal Length As Long, TrnasmitFirst As Byte, TransmitSecond As Byte)

Private Sub CommandButton1_Click()
    Dim Data(2) As Byte
    Dim TransmitFirst As Byte
    Dim TransmitSecond As Byte
    Data(0) = &H12
    Data(1) = &H34
    Call ComputeCrc(1, Data(0), 2, TransmitFirst, TransmitSecond)
End Sub

Muratss wrote:

I think i don't need int main block when i use this code as a dll.