Is it possible to modify the function “void Image::setBitmap(const Bitmap& bmp)�?？

[LTing]

​Is it possible to modify the function “void Image::setBitmap(const Bitmap& bmp)�?？

I tried to modify this function in the file "\framework\source\touchgfx\widgets\Image.cpp", but the code I modified is useless. Even if I remove this function from Image.cpp, the project can still be successfully built.

[Martin KJELDSEN]

Hi,

What do you mean by "but the code I modified is useless."? The code is open source to you, so what you're editing is what's getting compiled and linked into your application.

Why would you modify this file? Just trying to understand your motivation :)

/Martin

[LTing]

Hi Martin,

Sorry I did not express the problem clearly.

What puzzles me is:​ I modified the code as below, all images still display normally. So I think may be there is an same class and same function(setBitmap) in the touchgfx lib, the function in touchgfx lib is the one that is actually available.

The reason I am modifying the code is hard to say clearly. Due to insufficient RAM, I have to store the image data in Norflash. I tried to redefine LOCATION_EXTFLASH_ATTRIBUTE, but the hardware does not support this feature. Therefore, in order to display the image, I must first cache the bitmap into RAM and then display it using the function "dynamicBitmapCreate". There are hundreds of images, I don't want to modify them one by one. If I can modify the function "setBitmap", I can easily modify the display method of all the images.