How about [for] displayed directly on the MFC 16 565 RGB image data in memory?-CodePudding

Image data is someone coming, I want to show up, using the 16-bit RGB data, know width, pixel information and so on, but after the construction, show not to come out, can have a great spirit under the guidance of! ~ ~ ~

BITMAPINFO bmpinfo={0};

Bmpinfo. BmiHeader. BiPlanes=1;
Bmpinfo. BmiHeader. BiWidth=BMP. BmWidth;
Bmpinfo. BmiHeader. BiHeight=BMP. BmHeight;
Bmpinfo. BmiHeader. BiSizeImage=BMP. BmWidth * BMP bmHeight;
Bmpinfo. BmiHeader. BiSize=sizeof (BITMAPINFOHEADER);

Bmpinfo. BmiHeader. BiCompression=BI_RGB;
Bmpinfo. BmiHeader. BiBitCount=16;
Bmpinfo. BmiHeader. BiClrUsed=0;

//bmiColors this won't work,,
Bmpinfo. BmiColors - & gt; RgbReserved=0;
Bmpinfo. BmiColors - & gt; RgbRed=0 XFF;
Bmpinfo. BmiColors - & gt; RgbGreen=0 XFF;
Bmpinfo. BmiColors - & gt; RgbBlue=0 XFF;

HDC HDC=pDC - & gt; GetSafeHdc ();
SetDIBitsToDevice (hDC,
0,//xDst
0,//yDst
BMP bmWidth,//cxSrc
BMP bmHeight,//cySrc
0,//xSrc
0,//ySrc
0,//from what position are displaying dib
BMP bmHeight,//scan line how much
BMP bmBits,//specified start from what is the position of dib scanning
& Bmpinfo,
DIB_RGB_COLORS);

CodePudding user response:

R=R1/32 * 256
G=G1/64 * 256
B=B1/32 * 256

Conversion is 24 bits of data

CodePudding user response:

Debugging found SetDIBitsToDevice and there is no call to here, tip
No executable code is associated with this line. Possible causes include: the preprocessor directives or compiler/would optimizations

A face of meng force agghh==!

refer to the original poster ssg_king response:

image data is someone coming, I want to show up, using a 16-bit RGB data, know width, pixel information and so on, but after the construction, show not to come out, can have a great spirit under the guidance of! ~ ~ ~

BITMAPINFO bmpinfo={0};

Bmpinfo. BmiHeader. BiPlanes=1;
Bmpinfo. BmiHeader. BiWidth=BMP. BmWidth;
Bmpinfo. BmiHeader. BiHeight=BMP. BmHeight;
Bmpinfo. BmiHeader. BiSizeImage=BMP. BmWidth * BMP bmHeight;
Bmpinfo. BmiHeader. BiSize=sizeof (BITMAPINFOHEADER);

Bmpinfo. BmiHeader. BiCompression=BI_RGB;
Bmpinfo. BmiHeader. BiBitCount=16;
Bmpinfo. BmiHeader. BiClrUsed=0;

//bmiColors this won't work,,
Bmpinfo. BmiColors - & gt; RgbReserved=0;
Bmpinfo. BmiColors - & gt; RgbRed=0 XFF;
Bmpinfo. BmiColors - & gt; RgbGreen=0 XFF;
Bmpinfo. BmiColors - & gt; RgbBlue=0 XFF;

HDC HDC=pDC - & gt; GetSafeHdc ();
SetDIBitsToDevice (hDC,
0,//xDst
0,//yDst
BMP bmWidth,//cxSrc
BMP bmHeight,//cySrc
0,//xSrc
0,//ySrc
0,//from what position are displaying dib
BMP bmHeight,//scan line how much
BMP bmBits,//specified start from what is the position of dib scanning
& Bmpinfo,
DIB_RGB_COLORS);

CodePudding user response:

 
//the draw 16 bits BMP 
Void CShow256BmpDlg: : OnButton4 () 
{
//TODO: Add your the control notification handler code here 
CClientDC dc (this);//device context for painting 
The CDC memDC; 
CBitmap bitmap. 
CBitmap bitmap1; 
HBITMAP HBITMAP; 
HBITMAP OldBitmap; 
DWORD len. 
MemDC. CreateCompatibleDC (& amp; Dc); 
Bitmap. LoadBitmap (IDB_BITMAP1);//16 bit 
//
BITMAP bm={0}; 
Bitmap. GetBitmap (& amp; Bm); 
Int ImageSize=bm. BmWidthBytes * bm. BmHeight; 
BYTE * pImageIn=new BYTE [ImageSize]; 
Memset (pImageIn, 0, ImageSize); 
Len=bitmap. GetBitmapBits (ImageSize, pImageIn); 
//use: CreateDIBSection 
BITMAPINFO bmInfo; 
BmInfo. BmiHeader. BiSize=sizeof (BITMAPINFOHEADER); 
BmInfo. BmiHeader. BiWidth=bm. BmWidth; 
BmInfo. BmiHeader. BiHeight=- bm. BmHeight;//should '-'!!!!!!!!!! 
BmInfo. BmiHeader. BiPlanes=1; 
BmInfo. BmiHeader. BiBitCount=bm. BmBitsPixel;//=32 
BmInfo. BmiHeader. BiCompression=BI_RGB; 
BmInfo. BmiHeader. BiSizeImage=ImageSize; 
BmInfo. BmiHeader. BiXPelsPerMeter=0; 
BmInfo. BmiHeader. BiYPelsPerMeter=0; 
BmInfo. BmiHeader. BiClrUsed=0; 
BmInfo. BmiHeader. BiClrImportant=0; 

Void * tempArray=NULL; 
HBitmap=: : CreateDIBSection (dc m_hDC, (BITMAPINFO *) & amp; BmInfo, DIB_RGB_COLORS, & amp; TempArray, NULL, 0); 
Memcpy (tempArray pImageIn, ImageSize); 
//
OldBitmap=(HBITMAP) memDC. SelectObject (HBITMAP); 
Dc. BitBlt (0, 0, bm bmWidth, bm. BmHeight, & amp; MemDC, 0, 0, SRCCOPY); 
The delete [] pImageIn; 
}

bitmap. LoadBitmap (IDB_BITMAP1);//16 bit

CodePudding user response:

That bitmap. LoadBitmap (IDB_BITMAP1);//16 bit can also be changed to:
HBITMAP hTmp=(HBITMAP) LoadImage (NULL, "16. BMP," IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
Bitmap. The Attach (hTmp);
/*
BmType 0
BmWidth 640
BmHeight 341
BmWidthBytes 1280
BmPlanes 1

Page link：https//www.codepudding.com/Softwareengineering/56719.html

Prev:MFC use SendTo send data with ReceiveFrom the problem of data

Next:In c # how to obtain a control interface? Help ah, everyone a great god