These are done, found in the dialog box 1 and dialog switch directly to a memory leak, strange question, if I put below the m_pDisplay - & gt; Create (* * * *) function annotations, window switch don't have any problems,
I'm OpenGL dialog 1 configuration code is as follows:
CRect the rect (150, 20, 500, 370);//define the size of the drawing area
M_pDisplay - & gt; Create (NULL,
NULL,
//definition window style
WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE,
The rect,
This,
0);
Convenience to show my class defines the OpenGL COpenGL, base class is CWH, m_pDisplay is the object of a class, class implementation method is as follows,
Int COpenGL: : OnCreate (LPCREATESTRUCT LPCREATESTRUCT)
{
If (CWnd: : OnCreate (lpCreateStruct)==1)
return -1;
//TODO: here to add your special creation code
//set the current drawing pixel format
MySetPixelFormat (: : GetDC (m_hWnd));//set the current drawing pixel format
HDC=: : GetDC (m_hWnd);//get the drawing description table
HGLRC=wglCreateContext (HDC);//create the drawing description table
WglMakeCurrent (HDC, HGLRC);//make graphics context for the current call now cheng
the current drawing description table
return 0;
}
Int COpenGL: : MySetPixelFormat (HDC HDC)
{
PIXELFORMATDESCRIPTOR PFD={
Sizeof (PIXELFORMATDESCRIPTOR),//the size of the data structure
No. 1,//version
PFD_DRAW_TO_WINDOW |//window draw support
PFD_SUPPORT_OPENGL |//OpenGL support
PFD_DOUBLEBUFFER,//double cache support
PFD_TYPE_RGBA,//GRBA color mode
24,//24 color mode
0, 0, 0, 0, 0, 0,//ignore color a
0,//no Alpha cache
0,//ignore shift a
0,//no accumulation cache
0, 0, 0, 0,//ignore accumulate a
32,//32 bit depth buffer
0,//no template cache 0,//no auxiliary buffer without auxiliary cache
PFD_MAIN_PLANE,//the main layer main floor
0,//reserved reserve
0, 0, 0//ignore layers, visibility and damaged mask
};
Int iPixelFormat;
//get the device context 's best, the available pixel format match
//select matching pixel format, return to the index, to get the best match for device context of pixel format
If ((iPixelFormat=ChoosePixelFormat (HDC, & amp; PFD))==0)
{
MessageBox (NULL, _T (ChoosePixelFormat "Failed"), MB_OK);
return 0;
}
//make that match the device context 's current pixel format
//set the pixel format to a device context, setting up the matching pixel format for the current pixel format
If (SetPixelFormat (HDC, iPixelFormat, & amp; PFD)==FALSE)
{
MessageBox (NULL, _T (SetPixelFormat "Failed"), MB_OK);
return 0;
}
return 1;
}
Void COpenGL: : InitDrawArea ()
{glShadeModel (GL_SMOOTH);//Select Smooth Shading
GlHint (GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST);//Set the Perspective Calculations To Most Accurate
Quadratic=gluNewQuadric ();//Create A Pointer To The Quadric Object
GluQuadricNormals (quadratic, GLU_SMOOTH);//Create Smooth Normals
GluQuadricTexture (quadratic, GL_TRUE);//Create Texture Coords
GlEnable (GL_TEXTURE_2D);//Enable Texture Mapping
GlTexParameteri (GL_TEXTURE_2D GL_TEXTURE_MAG_FILTER, GL_NEAREST);//Set Texture Max Filter
GlTexParameteri (GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER, GL_NEAREST);//Set the Texture Min Filter
GlTexGeni (GL_S GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);//Set The Texture Generation Mode For S To Sphere Mapping
GlTexGeni (GL_T GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);//Set The Texture Generation Mode For T To Sphere Mapping
}
BOOL COpenGL: : DrawImage (int nWidth, int nHeight, int nChanel, GLubyte * pPixelData)
{
If (nChanel==1)
{
//this function is the function of, according to the specified parameters, generate a 2 d Texture (Texture)//1: R 2: RA 3: RGB 4: RGBA
GlTexImage2D (GL_TEXTURE_2D, 0, 1, nWidth, nHeight, 0, GL_RED, GL_UNSIGNED_BYTE, (GLvoid *) pPixelData);
}
Else if (nChanel==3)
{
GlTexImage2D (GL_TEXTURE_2D, 0, 3, nWidth, nHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *) pPixelData);
}
Else if (nChanel==2)
{
GlTexImage2D (GL_TEXTURE_2D, 0, 2, nWidth, nHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *) pPixelData);
}
The else
{
return FALSE;
}
GlClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
GlLoadIdentity ();
GlBegin (GL_QUADS);
{
GlTexCoord2f (0.0 0.0 f, f); GlVertex3f (0.0 + 1.0 1.0 f, f, f);
GlTexCoord2f (1.0 0.0 f, f); GlVertex3f (0.0 + 1.0 + 1.0 f, f, f);
GlTexCoord2f (1.0 1.0 f, f); GlVertex3f (0.0 + 1.0 f to 1.0 f, f);
GlTexCoord2f (0.0 1.0 f, f); GlVertex3f (0.0-1.0 f to 1.0 f, f);
}
GlEnd ();
GlFlush ();
SwapBuffers (HDC);
return TRUE;
}
CodePudding user response:
@ tiny ants
CodePudding user response: