GDI+ FFC Library: GDI+ object not created or associated

Asked By dennis_dizon 0 points N/A Posted on - 09/16/2012

GDI+ classes help. I got this error on my app.

How do I remedy this problem so that I could continue and finish this on time?

GDI+ FFC Library

GDI + object not created or associated

Gpgraphics

Error: 1098

Method: drawellipse

Line: 7

Error_GDIPLUS_NOGDIPOBJECT_LOC

Regards,

Dennis.

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Answered By Goram Ian 60 points N/A #168910

GDI+ FFC Library: GDI+ object not created or associated

When you want to draw a rectangle or an ellipse, I recommend you to make use of double buffering: this is done by creating a memory DC, you can make drawing on it, and then you do BitBit on real DC. To create ellipse you can use functions, the functions are CreateEllipticRgn, CreateEllipticRgnIndirect. For your information, the function creates a region object and the region object actually made by the union of rectangles with no vertical overlap.

The regions made is basically coming from non rectangular primitives and later it try to create the ellipse by simulating and creating using multiples of rectangles, connecting the lines roughly using scanlines that used to draw the primitive. This process leads to an elliptical area that's actually made from lot of short rectangles (height of the ellipse is more than the rectangles), this can lead to lots of work and make it really slow to calculate region and clipping.

GDI (Graphics device interface) uses all of them without the need to transform it. GDI will decipher all of the coordinates for each clip region, relative to the upper corner of the window when the applicable objects of the region available to be altered with CombineRgn and OffsetRgnfunctions.

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Answered By Smith Thompson 10 points N/A #168911

GDI+ FFC Library: GDI+ object not created or associated

 

If you are trying to use some library function then you need to access this library function form the library so first specify the library and then access its function. 

 

Smith Thompson

 

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• Posted on - 11/11/2012
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