TransparentBlt_() is imported in 4.40 winx86
Posted: Thu Oct 01, 2009 1:02 am
Hurray! 
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TransparentBlt_() is imported in 4.40 winx86
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Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Thu Oct 01, 2009 8:51 am
If netmaestro is excited enough about this to make a post about it then it must be good!
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Thu Oct 01, 2009 12:41 pm
wow, that must be really important .. never seen Netmeastro so excited before 
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Thu Oct 01, 2009 12:51 pm
Isn't that API buggy? I mean I read somewhere (on these forums I think) that the function can yield a memory leak on some systems.
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Thu Oct 01, 2009 2:33 pm
The memory leak only affected Win95 and 98. For my part, I stopped trying to write code that will run on those dinosaurs about three years ago. So for me, it isn't an issue. What is an issue imho is that it is five times faster (no exaggeration) than any alternatives I've seen. And for XP/2000 and up it's solid.
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Thu Oct 01, 2009 7:43 pm
Yes I thought that it affected only those old relics (Win 95 etc.) and so it's good for me!
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Fri Oct 02, 2009 12:32 am
any chance for a code snippet showing how it can be used?
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Fri Oct 02, 2009 1:54 am
OK:any chance for a code snippet showing how it can be used?
Code: Select all
If FileSize(GetTemporaryDirectory()+"girlonchair.bmp") = -1
InitNetwork()
If Not ReceiveHTTPFile("http://www.lloydsplace.com/girlonchair.bmp", GetTemporaryDirectory()+"girlonchair.bmp")
MessageRequester("oops...","Couldn't get image - ending",#MB_ICONERROR)
EndIf
EndIf
; If we're still here, we have the image in our temp directory
img = LoadImage(#PB_Any, GetTemporaryDirectory()+"girlonchair.bmp")
w=ImageWidth(img)
h=ImageHeight(img)
OpenWindow(0, 0, 0, 640, 480, "", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
x=WindowWidth(0)/2-w/2
y=WindowHeight(0)/2-h/2
Repeat
EventID = WaitWindowEvent()
Select EventID
Case #PB_Event_Repaint
hDC_Out = StartDrawing(WindowOutput(0))
hDC_In = CreateCompatibleDC_(#Null)
oldimg = SelectObject_(hDC_In, ImageID(img))
TransparentBlt_(hDC_Out,x,y,w,h,hDC_In,0,0,w,h,#White)
SelectObject_(hDC_In, oldimg)
DeleteDC_(hDC_In)
StopDrawing()
EndSelect
Until EventID = #PB_Event_CloseWindow
Re: TransparentBlt_() is imported in 4.40 winx86
Posted: Fri Oct 02, 2009 9:34 am
Oh, good to know - thx netmeastro