need exemple or function to get pixel alpha from pic

[Luigi]

Hi forum, I have some pic like this: 

This png image with transparency and I need obtan an array with same dimensions of imagen, and

if array[x,y] is alpha full, the value is 0,

else have any kind of color, the value of array[x,y] is 1.

like this

00000000

01111110

01000010

01000010

00100100

00100100

00111100

00000000

 

Someone can suggest an example or function like this?

 

Thansk, Detefon

[UEZ]

You can use GDI+ functions to read out the pixel color information -> _GDIPlus_BitmapGetPixel or using _GDIPlus_BitmapLockBits / _GDIPlus_BitmapUnlockBits.

Br,

UEZ