Hey,
Thanks for this great function! I've been using it for a long time and am very grateful for it
I've long had an odd problem where it seemed that on occasion - like once a week or so - the cursor would freeze in a certain shape. Reloading the script fixed the problem though so it was never a big deal. However recently I changed to have far more cursor updates and the problem became much more common.
I noticed that in process explorer each cursor change correlated with an increase in the number of GDI Objects. (I have no idea why I happened to have this column showing but it was fortunate
). When the GDI objects reach 10,000 they go no higher, and at this point the cursor stops changing. Also when the script has accumulated so many GDI objects I've noticed that sometimes it takes 10-20 seconds to reload it, i.e. far longer than normal.
Below is a link to a screenr video recording that demonstrates the problem:
http://www.screenr.com/5HS8
Although the cursor appears unchanged in the recording, it was changing on my monitor - at least until the GDI objects hit 10,000, at which point it froze on "IDC_NO".
And here's the script I used for the demonstration. Once more it does indeed work, it just accumulates GDI objects and stops working once this reaches 10k.
Code:
loop {
setsystemcursor("idc_no")
sleep 50
restorecursors()
sleep 50
}
RestoreCursors()
{
SPI_SETCURSORS := 0x57
DllCall( "SystemParametersInfo", UInt,SPI_SETCURSORS, UInt,0, UInt,0, UInt,0 )
}
SetSystemCursor( Cursor = "", cx = 0, cy = 0 )
{
BlankCursor := 0, SystemCursor := 0, FileCursor := 0 ; init
SystemCursors = 32512IDC_ARROW,32513IDC_IBEAM,32514IDC_WAIT,32515IDC_CROSS
,32516IDC_UPARROW,32640IDC_SIZE,32641IDC_ICON,32642IDC_SIZENWSE
,32643IDC_SIZENESW,32644IDC_SIZEWE,32645IDC_SIZENS,32646IDC_SIZEALL
,32648IDC_NO,32649IDC_HAND,32650IDC_APPSTARTING,32651IDC_HELP
If Cursor = ; empty, so create blank cursor
{
VarSetCapacity( AndMask, 32*4, 0xFF ), VarSetCapacity( XorMask, 32*4, 0 )
BlankCursor = 1 ; flag for later
}
Else If SubStr( Cursor,1,4 ) = "IDC_" ; load system cursor
{
Loop, Parse, SystemCursors, `,
{
CursorName := SubStr( A_Loopfield, 6, 15 ) ; get the cursor name, no trailing space with substr
CursorID := SubStr( A_Loopfield, 1, 5 ) ; get the cursor id
SystemCursor = 1
If ( CursorName = Cursor )
{
CursorHandle := DllCall( "LoadCursor", Uint,0, Int,CursorID )
Break
}
}
If CursorHandle = ; invalid cursor name given
{
Msgbox,, SetCursor, Error: Invalid cursor name
CursorHandle = Error
}
}
Else If FileExist( Cursor )
{
SplitPath, Cursor,,, Ext ; auto-detect type
If Ext = ico
uType := 0x1
Else If Ext in cur,ani
uType := 0x2
Else ; invalid file ext
{
Msgbox,, SetCursor, Error: Invalid file type
CursorHandle = Error
}
FileCursor = 1
}
Else
{
Msgbox,, SetCursor, Error: Invalid file path or cursor name
CursorHandle = Error ; raise for later
}
If CursorHandle != Error
{
Loop, Parse, SystemCursors, `,
{
If BlankCursor = 1
{
Type = BlankCursor
%Type%%A_Index% := DllCall( "CreateCursor"
, Uint,0, Int,0, Int,0, Int,32, Int,32, Uint,&AndMask, Uint,&XorMask )
CursorHandle := DllCall( "CopyImage", Uint,%Type%%A_Index%, Uint,0x2, Int,0, Int,0, Int,0 )
DllCall( "SetSystemCursor", Uint,CursorHandle, Int,SubStr( A_Loopfield, 1, 5 ) )
}
Else If SystemCursor = 1
{
Type = SystemCursor
CursorHandle := DllCall( "LoadCursor", Uint,0, Int,CursorID )
%Type%%A_Index% := DllCall( "CopyImage"
, Uint,CursorHandle, Uint,0x2, Int,cx, Int,cy, Uint,0 )
CursorHandle := DllCall( "CopyImage", Uint,%Type%%A_Index%, Uint,0x2, Int,0, Int,0, Int,0 )
DllCall( "SetSystemCursor", Uint,CursorHandle, Int,SubStr( A_Loopfield, 1, 5 ) )
}
Else If FileCursor = 1
{
Type = FileCursor
%Type%%A_Index% := DllCall( "LoadImageA"
, UInt,0, Str,Cursor, UInt,uType, Int,cx, Int,cy, UInt,0x10 )
DllCall( "SetSystemCursor", Uint,%Type%%A_Index%, Int,SubStr( A_Loopfield, 1, 5 ) )
}
}
}
}
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