Detect DirectX Version: Difference between revisions
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== Description == | == Description == | ||
This code will return the DirectX version number on the stack, or zero if DirectX is not installed. The return value is an integer concatonating the major and minor version: "810" for version 8.1, "900" for version 9.0. | This code will return the DirectX version number on the stack, or zero if DirectX is not installed. The return value is an integer concatonating the major and minor version: "810" for version 8.1, "900" for version 9.0. | ||
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Revision as of 23:28, 29 April 2005
| Author: jason379 (talk, contrib) |
Description
This code will return the DirectX version number on the stack, or zero if DirectX is not installed. The return value is an integer concatonating the major and minor version: "810" for version 8.1, "900" for version 9.0.
Example
Here is an example of how it can be used:
Call GetDXVersion Pop $R3 IntCmp $R3 900 +3 0 +3 MessageBox "MB_OK" "Requires DirectX 9.0 or later." Abort
The Function
And here is the code:
Function GetDXVersion Push $0 Push $1 ReadRegStr $0 HKLM "Software\Microsoft\DirectX" "Version" IfErrors noDirectX StrCpy $1 $0 2 5 ; get the minor version StrCpy $0 $0 2 2 ; get the major version IntOp $0 $0 * 100 ; $0 = major * 100 + minor IntOp $0 $0 + $1 Goto done noDirectX: StrCpy $0 0 done: Pop $1 Exch $0 FunctionEnd
