How to create BITMAP replace picture Monitor?

[vql]

I want to replace picture Monitor of System Properties (press key Win+Pause to view it, it is above and not OEM logo). I use Reshack to extract this picture Monitor in a file sysdm.cpl and save with a name is monitor.bmp and view it by Ifanview. I note background color of monitor.bmp is white but when view it in System Properties, background color is the same the taskpanel color (I use a theme with taskpanel color is black ,so background color of Monitor is same black (not white)). I modify sysdm.cpl by replace picture Monitor with my picture created (have background color is white) and use modified sysdm.cpl replace orginal sysdm.cpl of Windows. But when I view it in System Properties, background color (of the picture I created) is still white, it hasn't color like color of my theme. Why? How to create BMP in this case?

[vql]

This is a picture:

[SiMoNsAyS]

create a new alpha layer and save the image as 32bits bmp, you should find many tutorials and more info searching the net

welcome mate!

[vql]

Sorry, my English is very poor. Please help me with keyword to search.

[SiMoNsAyS]

http://steammachine.com/trainz/artfiles/ this page has nothing to do with your purpose BUT it explains how to create an image with an alpha layer and save it as 32bits.

[vql]

I use Photoshop CS to open original BMP (monitor.bmp), there are four channels in Channel tab of Photoshop include: RGB, Red, Green, Blue, Alpha 1. I try save this BMP (a new copy) with options:

+ Format: BMP, Save Alpha Channel.

+ OS: Windows

+ Resolution: 32bit RGBA

+ Name: temp.bmp.

I use Rehack to replace original BMP with temp.bmp but get a message error:

Please help me using which options?

[vql]

how to create shadow border?

Please tell me any graphic softwares to make this.

I am using Photoshop CS but don't know to use which filter?