[ VC(Visual C++) ]-DLL系列(03_抓抓圖)

[ VC(Visual C++) ]-DLL系列(03_抓抓圖)

[ VC(Visual C++) ]-DLL系列(03_抓抓圖)

本篇分享抓抓圖DLL有興趣的(C/P)同好歡迎來http://filemarkets.com/file/jashliao/753c17ea/索取因為我不會上傳檔案分享哈哈 ^ ^

主要程式碼:

// DC2DC.cpp : Defines the initialization routines for the DLL.
//
 
#include "stdafx.h"
#include "DC2DC.h"
#include "DibSection.h"
#include <stdlib.h>
#ifdef _DEBUG
#definenew DEBUG_NEW
#undef THIS_FILE
staticchar THIS_FILE[] = __FILE__;
#endif
int n;
char str1[10];
//
//    Note!
//
//        If this DLL is dynamically linked against the MFC
//        DLLs, any functions exported from this DLL which
//        call into MFC must have the AFX_MANAGE_STATE macro
//        added at the very beginning of the function.
//
//        For example:
//
//        extern "C" BOOL PASCAL EXPORT ExportedFunction()
//        {
//            AFX_MANAGE_STATE(AfxGetStaticModuleState());
//            // normal function body here
//        }
//
//        It is very important that this macro appear in each
//        function, prior to any calls into MFC.  This means that
//        it must appear as the first statement within the 
//        function, even before any object variable declarations
//        as their constructors may generate calls into the MFC
//        DLL.
//
//        Please see MFC Technical Notes 33 and 58 for additional
//        details.
//
 
/////////////////////////////////////////////////////////////////////////////
// CDC2DCApp
 
BEGIN_MESSAGE_MAP(CDC2DCApp, CWinApp)
    //{{AFX_MSG_MAP(CDC2DCApp)
        // NOTE - the ClassWizard will add and remove mapping macros here.
        //    DO NOT EDIT what you see in these blocks of generated code!
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()
 
/////////////////////////////////////////////////////////////////////////////
// CDC2DCApp construction
 
CDC2DCApp::CDC2DCApp()
{
    // TODO: add construction code here,
    // Place all significant initialization in InitInstance
    n=0;
}
 
/////////////////////////////////////////////////////////////////////////////
// The one and only CDC2DCApp object
void EXPORTED_DLL_FUNCTION DC2DC (long GetHDC,long w,long h)
{
    long Width,Height;
    long x,y;
    long R,G,B;
    CString  str2;
    itoa(n,str1,10);
    n++;
    str2=str1;
    str2=str2+".bmp";
    CDibSection testDib;
    CDibSection testDib1;
    testDib.Create(w,h,24);
    Width=testDib.Width();
    Height=testDib.Height();
    testDib1.Create(Width,Height,24);
    BitBlt(CDibDC(testDib),0,0,w/1,h/1,(HDC)GetHDC,0,0,SRCCOPY);
    for(x=0;x<Width;x++)
    {
        for(y=0;y<Height;y++)
        {
            BYTE *q1=(BYTE *)testDib.GetBits(x,y);//利用物件本身所提供之成員函數取得一個像素的 R,G,B(指標用法)
            BYTE *q=(BYTE *)testDib1.GetBits(x,y);//利用物件本身所提供之成員函數取得一個像素的 R,G,B(指標用法)
            B=*q1++;
            G=*q1++;
            R=*q1++;
            *q++=(0.299*R+0.587*G+0.114*B);
            *q++=(0.299*R+0.587*G+0.114*B);
            *q++=(0.299*R+0.587*G+0.114*B);
        }
    }
    testDib1.SaveBmp("test1.bmp");
    testDib.SaveBmp(str2.GetBuffer(0));
}
CDC2DCApp theApp;

 

 

One thought on “[ VC(Visual C++) ]-DLL系列(03_抓抓圖)

發表迴響

你的電子郵件位址並不會被公開。 必要欄位標記為 *