In CSDN for five years, has been with a number, the results have no points, try a variety of means to get points, but I didn't expect such a simple way (actually don't want that), because the idea also lost quite a few people to help me and answer a question to get 20 points, this time the problem is too difficult to me, it took nearly two months didn't solved, wish the 200 points is used to acknowledge the man who can help me, more hope someone can really help to me: how to implement interception background of DirectX 3 d games (not necessarily minimize) pictures, VB code, don't. NET, many people on the computer not installed. NET, thank you for the top post!

CodePudding user response:

I also asked the similar before, there is no solution,


See this post:
http://bbs.csdn.net/topics/390078978

CodePudding user response:

Unanswered, not WinCE under GetBitmapBits is no, you look at other people is how to realize the similar function get data, and then in the same way under Windows screenshots, after the most is the problem and BMP palette,

CodePudding user response:

SupermanKing have any experience in this field, for the point code?

CodePudding user response:

//GDI with DX screenshots API operations 
LPDIRECTDRAW lpDD=NULL; 
LPDIRECTDRAWSURFACE lpDDSPrime=NULL; 
LPDIRECTDRAWSURFACE lpDDSBack=NULL; 
LPDIRECTDRAWSURFACE lpDDSGdi=NULL; 
LPDIRECTDRAWSURFACE lpSurf=NULL; 

DDSURFACEDESC DDSdesc; 
BOOL m_b24=TRUE; 
//rfbServerInitMsg m_scrinfo; 
The RECT m_bmrect; 

Struct _BMInfo {
BITMAPINFO bmi; 
BOOL truecolour; 
The RGBQUAD cmap [256]; 
} m_bminfo;//is used to store the structure of the bitmap information 

Int DX_Init () {//DirectX initialization, returns the current surface to obtain a bitmap screen storage size 
Retrieves the hr; 

//initialize directX 
Hr=DirectDrawCreate (0, & amp; LpDD, 0); 
If (FAILED (hr)) return FALSE. 

Hr=lpDD - & gt; SetCooperativeLevel (NULL, DDSCL_NORMAL); 
If (FAILED (hr)) return FALSE. 

ZeroMemory (& amp; DDSdesc, sizeof (DDSdesc)); 
DDSdesc. DwSize=sizeof (DDSdesc); 
DDSdesc. DwFlags=DDSD_CAPS; 
DDSdesc. DdsCaps. DwCaps=DDSCAPS_PRIMARYSURFACE; 
Hr=lpDD - & gt; CreateSurface (& amp; DDSdesc, & amp; LpDDSPrime, 0); 
If (FAILED (hr)) return FALSE. 

Hr=lpDD - & gt; GetGDISurface (& amp; LpDDSGdi); 
If (FAILED (hr)) return FALSE. 

ZeroMemory (& amp; DDSdesc, sizeof (DDSdesc)); 
DDSdesc. DwSize=sizeof (DDSdesc); 
DDSdesc. DwFlags=DDSD_ALL; 
Hr=lpDDSPrime - & gt; GetSurfaceDesc (& amp; DDSdesc); 
If (FAILED (hr)) return FALSE. 

//initialize the bitmap information 
If ((DDSdesc dwFlags & amp; DDSD_WIDTH) & amp; & (DDSdesc dwFlags & amp; DDSD_HEIGHT)) {
M_bmrect. Left=m_bmrect. Top=0; 
M_bmrect. Right=DDSdesc. DwWidth; 
M_bmrect. Bottom=DDSdesc. DwHeight; 
} the else return FALSE. 

M_bminfo. Bmi. BmiHeader. BiCompression=BI_RGB;//BI_BITFIELDS; 
M_bminfo. Bmi. BmiHeader. BiBitCount=DDSdesc. DdpfPixelFormat. DwRGBBitCount; 

//m_bminfo truecolour=DDSdesc. DdpfPixelFormat. DwFlags & amp; DDPF_RGB; 
If (m_bminfo. Bmi. BmiHeader. BiBitCount & gt; 8) 
M_bminfo. Truecolour=TRUE; 
The else 
M_bminfo. Truecolour=FALSE; 

ZeroMemory (& amp; DDSdesc, sizeof (DDSdesc)); 
DDSdesc. DwSize=sizeof (DDSdesc); 
DDSdesc. DwFlags=DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH; 
DDSdesc. DdsCaps. DwCaps=DDSCAPS_OFFSCREENPLAIN; 
DDSdesc. DwHeight=m_bmrect. Bottom - m_bmrect. Top; 
- m_bmrect DDSdesc. DwWidth=m_bmrect. Right. Left. 
Hr=lpDD - & gt; CreateSurface (& amp; DDSdesc, & amp; LpDDSBack, 0); 
If (FAILED (hr)) return FALSE. 
//hr=lpDDSPrime - & gt; QueryInterface (IID_IDirectDrawSurface3, (LPVOID *) & amp; LpSurf); 
//if (FAILED (hr)) return FALSE. 

The switch (m_bminfo. Bmi. BmiHeader. BiBitCount) {
A case of 32: 
Case 24: 
//Update the bitmapinfo header 
M_b24=TRUE; 
M_bminfo. Bmi. BmiHeader. BiSize=sizeof (BITMAPINFOHEADER); 
M_bminfo. Bmi. BmiHeader. BiWidth=1024; 
M_bminfo. Bmi. BmiHeader. BiHeight=768; 
M_bminfo. Bmi. BmiHeader. BiPlanes=1; 
.//m_bminfo. Bmi. BmiHeader biBitCount=24; 
M_bminfo. Bmi. BmiHeader. BiCompression=BI_RGB; 
M_bminfo. Bmi. BmiHeader. BiSizeImage=abs ((m_bminfo. Bmi. BmiHeader. BiWidth * m_bminfo in bmi. The bmiHeader. BiHeight * m_bminfo in bmi. The bmiHeader. BiBitCount)/8); 
M_bminfo. Bmi. BmiHeader. BiXPelsPerMeter=(1024 * 1000)/1024; 
M_bminfo. Bmi. BmiHeader. BiYPelsPerMeter=(768 * 1000)/768; 
M_bminfo. Bmi. BmiHeader. BiClrUsed=0; 
M_bminfo. Bmi. BmiHeader. BiClrImportant=0; 
break; 
} 

Return m_bminfo. Bmi. BmiHeader. BiSizeImage; 
} 

BOOL CaptureScreen (the RECT & amp; The rect, BYTE * scrBuff, UINT scrBuffSize) {//capture screen, the rect: area, scrBuff: the output buffer, scrBuffSize: buffer size 
Retrieves the hr=0; 

Hr=lpDDSBack - & gt; BltFast (the rect. Left, the rect. Top lpDDSPrime, & amp; The rect, DDBLTFAST_NOCOLORKEY | DDBLTFAST_WAIT); 
If (FAILED (hr)) return FALSE. 

DDSURFACEDESC surfdesc; 
ZeroMemory (& amp; Surfdesc, sizeof (surfdesc)); 
Surfdesc. DwSize=sizeof (surfdesc); 

Hr=lpDDSBack - & gt; The Lock (& amp; The rect, & amp; Surfdesc, DDLOCK_READONLY | DDLOCK_WAIT | DDLOCK_SURFACEMEMORYPTR/* | DDLOCK_NOSYSLOCK */, NULL); 
//hr=lpDDSPrime - & gt; The Lock (& amp; The rect, & amp; Surfdesc, DDLOCK_READONLY | DDLOCK_WAIT | DDLOCK_SURFACEMEMORYPTR/* | DDLOCK_NOSYSLOCK */, NULL); 
If (FAILED (hr)) return FALSE. 

//copy the data into our buffer 
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