diff options
Diffstat (limited to 'scripts/windows_input/Native.cs')
| -rw-r--r-- | scripts/windows_input/Native.cs | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/scripts/windows_input/Native.cs b/scripts/windows_input/Native.cs index 76cb8af7..9d635753 100644 --- a/scripts/windows_input/Native.cs +++ b/scripts/windows_input/Native.cs @@ -108,7 +108,15 @@ namespace HerdrInputGauntlet { [DllImport("user32.dll", SetLastError=true)] static extern uint SendInput(uint count, Input[] events, int size); [DllImport("user32.dll")] static extern bool GetWindowRect(IntPtr hwnd, out Rect rect); [DllImport("user32.dll")] static extern bool SetWindowPos(IntPtr hwnd, IntPtr after, int x, int y, int width, int height, uint flags); - [DllImport("user32.dll")] public static extern int CountClipboardFormats(); + [DllImport("user32.dll",EntryPoint="CountClipboardFormats",SetLastError=true)] static extern int NativeCountClipboardFormats(); + public static int CountClipboardFormats() { + int count=NativeCountClipboardFormats(); + if(count==0) { + int error=Marshal.GetLastWin32Error(); + if(error!=0) throw new Win32Exception(error,"Clipboard format count failed"); + } + return count; + } [DllImport("user32.dll")] public static extern uint GetClipboardSequenceNumber(); [DllImport("user32.dll")] static extern IntPtr GetClipboardOwner(); [DllImport("user32.dll")] static extern bool OpenClipboard(IntPtr owner); @@ -141,6 +149,14 @@ namespace HerdrInputGauntlet { if(result<0) Marshal.ThrowExceptionForHR(result); return checked((int)pid); } + public static int ClearClipboardForRun() { + if(!OpenClipboard(IntPtr.Zero)) throw new Exception("Clipboard busy; cannot start paste qualification"); + try { + int formats=CountClipboardFormats(); + if(formats!=0 && !EmptyClipboard()) throw new Exception("Clipboard clear failed"); + return formats; + } finally { CloseClipboard(); } + } public static uint SetEmptyClipboard(IntPtr owner,string text) { if(owner==IntPtr.Zero) throw new Exception("Clipboard owner is required"); |