How to popup a child form when I click the button. I want to child winform to be in the centre of the screen and the whole background screen should be blurred. and a small close button should be visible in the right corner of the form. I have searched the web but found nothing.
Using Winforms.
Make a new windows form. it has a close button by default. Set it default position to center screen. Then on your button click.
Lets say your new form is Form2
Form2 frm = new Form2();
frm.ShowDialog();
it will not make the rest of screen blurred but user will not be able to do anything with it.
For blurry effect a workaround has been posted here
You can trigger event from click button like this
Form form1=new Form();
form1.show;
and after that to blurr the parent screen use opacity property of and increase or decrease it accord to your requirement.
you can also control the transparency of the child form using a timer and increase paacity with timer click it will make it more dynamic and interactive.
Related
I'm trying to place a transparent and borderless child (WinForm) form on top of another child (WinForm) form that is opaque, but I'd like to retain the ability to directly click on the transparent form. There are a few answers on the web regarding making a transparent form that can be clicked through, but I want to make one that I can click on.
I've found this answer, which shows that setting my transparent form's BackColor and TransparencyKey to something specific like Color.Red achieves the desired behavior. However based on this answer, it seems this behavior between certain Colors and TransparencyKey may actually be a long-running bug.
Ideally I don't want to rely on a bug to achieve a desired effect. What would be a more "appropriate" approach for making a clickable, transparent, and borderless (WinForm) form?
Update (Additional Context):
I'm basically creating a screen pixel previewer for color data extraction.
Overlay forms containing captured bitmap(s) of the screen area.
Another form that gives a visual indicator for the pixel area being previewed (small black box in the below snapshot). This form is placed above the bitmap forms. I have this form as transparent (to see through to the below bitmaps), but I still want to be able to click on it for event processing.
Without the TransparencyKey = BackColor = Color.Red trick, clicking within the small black box causes focus to move to the below bitmap form, which then covers up the small box form and the preview window showing the zoomed view. The purpose of the click is to capture the cursor position for additional processing. I can work around this by immediately giving focus back to the small box + preview forms, but that occasionally causes flicker.
I am developing a generic GUI with a windows form in c#.
I have added different buttons and windows on the right panel of the form. What I would like to do is to link these buttons on the right with different subforms (?) which will appear on the left. In particular, when pressing a button on the right panel, I would like to display a new form/userControl/window/or-anything-you-recommend on the left panel of my ParentForm. Should I go with MDI Form? How could I specify where to position each of the child forms on the Parent one?
Many thanks in advance!
How can I disable the "opening" animation of a window under Aero programatically?
When opening a new Form it "pops in" (fade in + a slight scaling transformation).
I want to stop this animation and show the window instantly.
I already tried to set the Location property of the Form to somewhere offscreen, then calling Show(), and then moving it at its correct location.
But that doesn't help, the animation will continue.
Maybe there is some hidden property I can set?
I don't want to disable open/close/minimize/maximize animations globally!
I just want to skip the "window-open" animation of my window.
I already played around with single and multiple calls ShowWindow(...) directly after Form.Show(). But no matter what parameters I pass, doesn't abort the opening-animation.
I've got it! After some trying around with ShowWindow, BorderStyles I found my exact solution:
Change the initial "FormBorderStyle" property of the form to one of those:
None
FixedToolWindow
SizeableToolWindow
Add a eventhandler to the Forms "Shown" event.
Inside the eventhandler, change the FormBorderStyle to "Sizeable" (or any other).
Now the trick is that "none" and "*toolwindow" borderstyles will suppress the opening/popup animation for that form. Than, as soon as the form is being displayed the borderstyle is changed, giving it the original functionality (Icon in the Control-Bar, Minimize/Maximize Buttons etc...)
Edit: For everyone who might want to try this too, I have to point out that this can will screw with the actual size of the window when done with PInvoke commands.
If you rely on the size of the window being correct, be sure to resize the the window to its intended size after you done this.
This is part of windows visual effects and can be adjusted using the SystemParametersInfo Method.
I found that the animation is only take place when the form is shown for the first time.
So here is the trick:
var form = new Form();
form.Show();
form.Hide();
form.Show();
I tested it only in Windows 8
You can change the style before and after, like this, which will prevent the fade-out animation.
this.FormBorderStyle = FormBorderStyle.Sizable;
this.Show();
// Do whatever
this.FormBorderStyle = FormBorderStyle.Sizable;
this.Show();
The dialog works as a color picker w/ a shot of the entire desktop as it's background and is instantiated from a form.
The dialog's Cursor property is set to a pipette (custom) cursor on load.
The region on the dialog where the parent form appears is set to transparent so current color at pixel location is reflected on the parent form.
On load, however, the cursor momentarily changes to a pipette cursor and then changes back to default, regardless.
I'm not sure what's happening. I already tried setting the pipette cursor again OnMouseHover, OnMouseMove, heck even OnPaint, on the dialog, but nothing works.
Try this one out in the Form load.
It worked for my Custom cursor (Controll for the Cursor was a Button)
System.IO.MemoryStream ms = new System.IO.MemoryStream(CustomCursorPath);
Controlname.Cursor = new Cursor(ms);
I am just trying to create a form control in winform in .net with custom shaped of balloon shape.
There is need of a balloon tooltip which is transparent and I can put buttons on tooltip,but
tooltip in .net does not provide facality that we can put the buttons on tooltip control so
I want to make a form control looks like a balloon tooltip and so I can put buttons on that form looking like a tooltip.But I cannot show window form control look like a balloon tooltip.
So what should I do??
I tried in one way that I create a image in powerpoint of balloon shape and set it to as background image of form property.But there is no solution with that.
The Control class supports a BackColor with an alpha < 255, it is automatic. It asks the Parent to draw itself to produce the background of the control, then draws itself on top of that. However, you'll want a top-level window for a balloon. That's a window type that can arbitrarily overlap another window and isn't confined by the client area of an underlying window. It has no Parent. A ToolTip is such a window.
The only control available in Windows Forms that can be an top-level window is a Form. Problem is: the transparency trick no longer works. Since a top-level window doesn't have a Parent, there isn't any obvious window to ask to draw the background. It could be many windows, belonging to other processes. You can get transparency in a Form with its TransparencyKey property. But that's a "hard" transparency, equivalent to an alpha of 0. You probably want a soft one. Another nasty problem is that drawing anti-aliased (ClearType) text no longer works since there is no reliable background pixel color anymore.
Long story short: you can't make this work well unless you confine the balloon to the client area of a form. A control, not a form.
You can try to hook on the Paint event of the control and draw the Visual of the button there.