Setting the recommended size for small icons

[richs1000]

We're developing an application with AutoIT v3 in WindowsXP which makes the following changes to some of the Desktop settings through the SystemParametersInfo():

* sets menu width to 18

* sets menu height to 19

* sets scroll width to 17

* sets scroll height to 17

* sets caption width to 25

* sets caption height to 17

* sets font size to 11

Here's the code I use to make the changes:

CODE

$nonclientmetrics = DllStructCreate("uint;int;int;int;int;int;byte[60];int;int;byte[60];int;int;byte[60];byte[60];byte[60]")

DLLStructSetData($nonclientmetrics,1,DllStructGetSize($nonclientmetrics))

Global Const $SPI_GETNONCLIENTMETRICS = 41

Global Const $SPI_SETNONCLIENTMETRICS = 42

Global Const $SPIF_SENDCHANGE = 2

Global Const $SPIF_UPDATEINIFILE = 1

$a = DLLCall("user32.dll","int","SystemParametersInfo","int",$SPI_GETNONCLIENTMETRICS, _

"int",DllStructGetSize($nonclientmetrics), _

"ptr",DllStructGetPtr($nonclientmetrics),"int",0)

$b = DLLCall("kernel32.dll","int","GetLastError")

$logfont1 = DllStructCreate("long;long;long;long;long;byte;byte;byte;byte;byte;byte;byte;byte;char[32]",DLLStructGetPtr($nonclientmetrics,7))

$logfont2 = DllStructCreate("long;long;long;long;long;byte;byte;byte;byte;byte;byte;byte;byte;char[32]",DLLStructGetPtr($nonclientmetrics,10))

$logfont3 = DllStructCreate("long;long;long;long;long;byte;byte;byte;byte;byte;byte;byte;byte;char[32]",DLLStructGetPtr($nonclientmetrics,13))

$logfont4 = DllStructCreate("long;long;long;long;long;byte;byte;byte;byte;byte;byte;byte;byte;char[32]",DLLStructGetPtr($nonclientmetrics,14))

$logfont5 = DllStructCreate("long;long;long;long;long;byte;byte;byte;byte;byte;byte;byte;byte;char[32]",DLLStructGetPtr($nonclientmetrics,15))

$menuWidth = DllStructGetData($nonclientmetrics,11)

$menuHeight = DllStructGetData($nonclientmetrics,12)

;set menu width to 18

DllStructSetData($nonclientmetrics,11,18)

;set menu height to 19

DllStructSetData($nonclientmetrics,12,19)

;set scroll width to 17

DllStructSetData($nonclientmetrics,3,17)

;set scroll height to 17

DllStructSetData($nonclientmetrics,4,17)

;set caption width to 25

DllStructSetData($nonclientmetrics,5,25)

;set caption height to 17

DllStructSetData($nonclientmetrics,4,17)

;set font size to 11

DllStructSetData($logfont3,1,-11)

$a = DLLCall("user32.dll","int","SystemParametersInfo","int",$SPI_SETNONCLIENTMETRICS, _

"int",DllStructGetSize($nonclientmetrics), _

"ptr",DllStructGetPtr($nonclientmetrics),"int", BitOR($SPIF_UPDATEINIFILE, $SPIF_SENDCHANGE))

When we make these changes, the size of the small icons in the system tray changes from 16 to 22. I can verify this by calling the GetSystemMetrics() function and querying on SM_CXSMICON and SM_CYSMICON:

CODE

Const $SM_CXSIZE=30

Const $SM_CYSIZE=31

Const $SM_CXSMICON=49

Const $SM_CYSMICON=50

Const $SM_CXSMSIZE=52

Const $SM_CYSMSIZE=53

Const $SM_CYCAPTION=4

$xicosz=DllCall('user32.dll', 'int', 'GetSystemMetrics', 'int', $SM_CXSMICON)

$cxsmicon=$xicosz[0]; 19 or 26

$yicosz=DllCall('user32.dll', 'int', 'GetSystemMetrics', 'int', $SM_CYSMICON)

$cysmicon=$yicosz[0]; 19 or 26

$xsmsz=DllCall('user32.dll', 'int', 'GetSystemMetrics', 'int', $SM_CXSMSIZE)

$cxsmsize=$xsmsz[0]; 19 or 26

$ysmsz=DllCall('user32.dll', 'int', 'GetSystemMetrics', 'int', $SM_CYSMSIZE)

$cysmsize=$ysmsz[0]; 19 or 26

$xsz=DllCall('user32.dll', 'int', 'GetSystemMetrics', 'int', $SM_CXSIZE)

$cxsize=$xsz[0]; 19 or 26

$ysz=DllCall('user32.dll', 'int', 'GetSystemMetrics', 'int', $SM_CYSIZE)

$cysize=$ysz[0]; 19 or 26

MsgBox(4096,"default values", _

"small icon x = " & $cxsmicon & @LF & _

"small icon y = " & $cysmicon & @LF & _

"small button x = " & $cxsmsize & @LF & _

"small button y = " & $cysmsize & @LF & _

"caption button x = " & $cxsize & @LF & _

"caption button y = " & $cysize)

The only way I've found to return the system tray icons to their original size is to select the WindowsXP theme from the Display dialog box.

Is there any way to prevent these values from changing? Or returning them to their original value? There does not seem to be any way to do this using SystemParametersInfo(), and there is no SetSystemMetrics() function.

Thanks.

rich