2D: SpritePixelCollision with transparent Sprite

[PHP]

Hi,

in wanna check if the crosshair is above a visible pixel of a sprite.

I load 2 sprites:

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CatchSprite(#Sprite_Crosshair,?Image2):DataSection:Image2:IncludeBinary "gfx\crosshair.bmp":EndDataSection
CatchSprite(#Sprite_Building,?Image6):DataSection:Image6:IncludeBinary "gfx\building.bmp":EndDataSection

I place the building (with some transparent windows) on the screen:

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DisplayTransparentSprite(#Sprite_Building,300,150)

Now i want to check the collision:

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If SpritePixelCollision(#Sprite_Crosshair,MouseX(),MouseY(),#Sprite_Building,MouseX(),MouseY()) And MouseButton(1)

; do something

EndIf

Are the parameters for the building correct? Because it's on a fixed place... or should i put there the values of it's position (300,150) in instead of the mouse positions?

Thanks,
PHP

[netmaestro]

You need to put the building position. Also, you may need to adjust your collision test coords for the mousepos to determine if the center of the crosshairs sprite is in collision with the building, as the top-left may not suffice.