Active 1 year, 1 month ago. Viewed 37k times. Add a comment. Active Oldest Votes. Left ; t. Top ; t. ShowDialog ;. Nathan Baulch Nathan Baulch I recommend that you switch to WPF; that would make it far easier. SLaks SLaks k gold badges silver badges bronze badges. For future reference: this. Update ; just outside of the moveControl method you create will dramatically reduce flickering, practically to the point where it's not noticable unless you're running like a billion apps at once.
This is too much damn work, though. Just use WPF. MusiGenesis MusiGenesis Community Bot 1 1 1 silver badge. Save a copy of each of the items' x and y values as a float. Should be easy-peasy. Andrew Morton Pedery Pedery 3, 1 1 gold badge 25 25 silver badges 38 38 bronze badges. Neither link shows how to make semitransparent controls.
The first link is a great tutorial on how to create fully transparent controls. The second link is a short discussion on how you could create semitransparent controls by using your own custom painting with brushes with an alpha value. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.
Privacy policy. Control placement in Windows Forms is determined not only by the control, but also by the parent of the control. This article describes the different settings provided by controls and the different types of parent containers that affect layout.
The Desktop Guide documentation for. NET 6 and. NET 5 including. NET Core 3. The position a control appears on a parent is determined by the value of the Location property relative to the top-left of the parent surface.
The top-left position coordinate in the parent is x0,y0. The size of the control is determined by the Size property and represents the width and height of the control. When a control is added to a parent that enforces automatic placement, the position and size of the control is changed.
In this case, the position and size of the control may not be manually adjusted, depending on the type of parent. The MaximumSize and MinimumSize properties help set the minimum and maximum space a control can use.
There are two control properties that help with precise placement of controls: Margin and Padding. The Margin property defines the space around the control that keeps other controls a specified distance from the control's borders. The Padding property defines the space in the interior of a control that keeps the control's content for example, the value of its Text property a specified distance from the control's borders.
The following figure shows the Margin and Padding properties on a control. The Visual Studio Designer will respect these properties when you're positioning and resizing controls. Snaplines appear as guides to help you remain outside the specified margin of a control. For example, Visual Studio displays the snapline when you drag a control next to another control:.
Controls can be automatically placed within their parent. Some parent containers force placement while others respect control settings that guide placement. There are two properties on a control that help automatic placement and size within a parent: Dock and Anchor. Drawing order can affect automatic placement. The order in which a control is drawn determined by the control's index in the parent's Controls collection. This index is known as the Z-order. Each control is drawn in the reverse order they appear in the collection.
Meaning, the collection is a first-in-last-drawn and last-in-first-drawn collection. The MinimumSize and MaximumSize properties help set the minimum and maximum space a control can use. The Dock property sets which border of the control is aligned to the corresponding side of the parent, and how the control is resized within the parent. When a control is docked, the container determines the space it should occupy and resizes and places the control.
The width and height of the control are still respected based on the docking style. For example, if the control is docked to the top, the Height of the control is respected but the Width is automatically adjusted. If a control is docked to the left, the Width of the control is respected but the Height is automatically adjusted.
The Location of the control can't be manually set as docking a control automatically controls its position. The Z-order of the control does affect docking. As docked controls are laid out, they use what space is available to them. For example, if a control is drawn first and docked to the top, it will take up the entire width of the container. If a next control is docked to the left, it has less vertical space available to it. If the control's Z-order is reversed, the control that is docked to the left now has more initial space available.
The control uses the entire height of the container. The control that is docked to the top has less horizontal space available to it.
As the container grows and shrinks, the controls docked to the container are repositioned and resized to maintain their applicable positions and sizes. If multiple controls are docked to the same side of the container, they're stacked according to their Z-order. Anchoring a control allows you to tie the control to one or more sides of the parent container. As the container changes in size, any child control will maintain its distance to the anchored side. The second version of Start saves the current time in the LastMoveTime variable and enables the Timer.
If the control has been moving for long enough to reach its destination, the code disables the Timer , moves the control to its final position, and raises the Done event. The example program uses two sprites to animate a Button and a Label moving at the same time.
This code declares two ControlSprite objects. This code first determines whether the Button currently says Start or Stop. If the Button says Start, the code makes it say Stop. That way you can stop and restart the movement whenever you like.
You can use similar techniques to do other kinds of property animation, although defining some animations may contain extra work. For example, you would need to figure out how to change a color to make it gradually change from red to green. Unfortunately I think most of those would be developed at a lower level than I at least can reasonably handle in C. You can build a web spider by using the WebBrowser control.
See this example for some tips to get you started:. Unfortunately WebBrowser is pretty heavy so this will be relatively slow.
A faster approach would be to download files directly and parse them yourself. See Download files from the web in C.
0コメント