位图和Dev-c ++ [英] Bitmaps and Dev-c++

问题描述

大家好，

我从来没有处理过位图处理.我在Google上搜索了一段时间，但找不到适合我的dev-cpp的任何东西.

我要在此处完成的任务是模拟用户按下打印屏幕按钮，将剪贴板数据加载到位图，将其裁剪并缩放为特定大小，然后将其与保存在程序目录中的bmp文件进行比较.

这应该将我的bmp文件加载到位图

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
        fclose(fp);

这应该将剪贴板数据加载到位图

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;
dc.CreateCompatibleDC(&cdc);
dc.SelectObject(bm);
cdc.BitBlt(0,0,200,200,&dc,0,0,SRCCOPY);

CloseClipboard();

}

但是它报告了诸如CBitmap，FromHandle，ClientDC未声明的问题
我没有经验，所以不知道该怎么办.有人可以帮我把它成型吗?

谢谢

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?

Thanks

推荐答案

似乎您正在尝试在控制台程序中使用MFC Window类.您还提到您没有经验，因此在着手此类项目之前花一些时间学习Windows编程的基础可能会更好.互联网上有很多资源可以为您提供帮助:请查看 MSDN [ ^ ]是一个很好的起点，有用的文章此处 [

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.

我建​​议您获取免费的Microsoft Visual C ++ Express [

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.

这篇关于位图和Dev-c ++的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！