|
Overview |
|
|
|
Group |
|
|
|
Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| user32.lib
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
|
|
|
GetQueueStatus
The GetQueueStatus function returns flags that indicate the type of messages found in the
calling thread's message queue.
DWORD GetQueueStatus(
UINT flags
| // queue-status flags
| );
|
|
Parameters
flags
Specifies queue-status flags giving the types of messages to check for. This
parameter can be a combination of the following values:
Value
| Meaning
| QS_ALLEVENTS
| An input, WM_TIMER, WM_PAINT, WM_HOTKEY, or posted message is in the queue.
| QS_ALLINPUT
| Any message is in the queue.
| QS_HOTKEY
| A WM_HOTKEY message is in the queue.
| QS_INPUT
| An input message is in the queue.
| QS_KEY
| A WM_KEYUP, WM_KEYDOWN, WM_SYSKEYUP, or WM_SYSKEYDOWN message is in the queue.
| QS_MOUSE
| A WM_MOUSEMOVE message or mouse-button message (WM_LBUTTONUP, WM_RBUTTONDOWN,
and so on).
| QS_MOUSEBUTTON
| A mouse-button message (WM_LBUTTONUP, WM_RBUTTONDOWN, and so on).
| QS_MOUSEMOVE
| A WM_MOUSEMOVE message is in the queue.
| QS_PAINT
| A WM_PAINT message is in the queue.
| QS_POSTMESSAGE
| A posted message (other than those just listed) is in the queue.
| QS_SENDMESSAGE
| A message sent by another thread or application is in the queue.
| QS_TIMER
| A WM_TIMER message is in the queue.
|
Return Values
The high-order word of the return value indicates the types of messages
currently in the queue. The low-order word indicates the types of messages that have
been added to the queue and that are still in the queue since the last call to
the GetQueueStatus, GetMessage, or PeekMessage function.
Remarks
The presence of a QS_ flag in the return value does not guarantee that a
subsequent call to the PeekMessage or GetMessage function will return a message. GetMessage and PeekMessage perform some internal filtering that may cause the message to be processed
internally. For this reason, the return value from GetQueueStatus should be considered only a hint as to whether GetMessage or PeekMessage should be called.
See Also
GetInputState, GetMessage, PeekMessage
| Last news from Greatis Software |
 |
|
Nostalgia .Net |
|
.Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes. More » |
| Recommended software for developers |
 |
|
Ultimate Pack |
|
Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price. More » |
 |
|
Form Designer .Net |
|
Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro! More » |
 |
|
Print Suite .Net |
|
Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available More » |
 |
|
Gradient Controls .Net |
|
Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available More » |
 |
|
Greatis iGrid |
|
iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors. More » |
All the contacts and projectsDmitry Vasiliev (just.dmitry)
Related LinksSoftware for Visual Studio .NET developers
Software for Delphi and C++ Builder developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET More Online Helps Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages
|
