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Hey guys,

I have never dealt with bitmap handling whatsoever. I googled for some time yet wasn't able to find anything that would work with my dev-cpp.

What I intend to accomplish here is to emulate a user pressing the printscreen button, loading the clipboard data to a bitmap, crop&pan it to a certain size and compare it to a bmp file saved in my program directory.

this should load my bmp file to a bitmap
#include <iostream>
#include <fstream>
#include <windows.h>
using namespace std;
int main(){
unsigned char Header[0x435],image[256][256];
FILE* fp=fopen("Unbenannt.bmp","r");
fread(Header,1,0x435,fp);   // copy image header to Header array
        fseek(fp,0x436,SEEK_SET);   // Move file pointer to start of image data
        fread(image,1,256*256,fp);  // read image data and copy to ImageIn1[][] array

and this should load the clipboard data to the bitmap
		if ( OpenClipboard(NULL) )
//Get the clipboard data
HBITMAP handle = (HBITMAP)GetClipboardData(CF_BITMAP);
CBitmap * bm = CBitmap::FromHandle(handle);

ClientDC cdc(this);
HDC dc;



however it reports problems such as CBitmap, FromHandle, ClientDC undeclared
I don't know what to do as I have no experience. Could someone please help me get this into shape?

Updated 23-Oct-10 4:03am

It looks as though you are trying to use MFC Window classes in a console program. You also mention that you have no experience so it would perhaps be better to spend some time learning the basics of Windows programming before embarking on a project such as this. There are lots of resources on the internet to help you: take a look at MSDN[^] as a good starting point, also lots of useful articles here[^] on CodeProject.
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Coburner 23-Oct-10 11:18am    
what I meant to say was that I hadn't done any projects regarding bitmaps. I am familiar with plain C++ programming though. Well in any case.. what would you suggest as the best way to go about this? I presume that Dev-c++ does not support MFC and Microsoft's VS is expen$ive
I would suggest getting a copy of the free Microsoft Visual C++ Express[^]. Although it does not include support for MFC it supports the full Win32 API and makes it fairly simple to produce graphical programs.
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